1
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Lascaris E, Marchese F, Gaspar N. Crystallization and the liquid-liquid critical point in nonbonded modified-WAC models. J Chem Phys 2024; 161:044503. [PMID: 39037140 DOI: 10.1063/5.0215601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Accepted: 07/03/2024] [Indexed: 07/23/2024] Open
Abstract
For decades, it has been known that Liquid-Liquid Critical Points (LLCPs) can exist in one-component liquids, yet a comprehensive understanding of the conditions under which they arise remains elusive. To better comprehend the possible interplay between the LLCP and the crystalline phase, we conduct molecular dynamics simulations using the nonbonded family of modified-WAC (mWAC) models, which are known to exhibit a LLCP for certain parameter values. By comparing different versions of the mWAC model-those featuring a LLCP and those lacking one-we identify several key differences between the models relating to crystallization. Those models that do have a LLCP are found to have multiple stable crystalline phases, one of them being a solid-state ionic conductor similar to superionic ice. Moreover, we find that for models that do not have a LLCP, the liquid becomes a glass at a larger range of temperatures, possibly preventing the occurrence of a LLCP. Further studies are required to determine if these results are general or model-specific.
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Affiliation(s)
- Erik Lascaris
- Department of Chemistry & Physical Sciences, Pace University, New York, New York 10038, USA
| | - Francesca Marchese
- Department of Chemistry & Physical Sciences, Pace University, New York, New York 10038, USA
| | - Nicole Gaspar
- Department of Chemistry & Physical Sciences, Pace University, New York, New York 10038, USA
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2
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Stenz C, Pries J, Surta TW, Gaultois MW, Wuttig M. Evolution of Short-Range Order of Amorphous GeTe Upon Structural Relaxation Obtained by TEM Diffractometry and RMC Methods. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2304323. [PMID: 37908162 PMCID: PMC10754132 DOI: 10.1002/advs.202304323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/14/2023] [Indexed: 11/02/2023]
Abstract
Glasses frequently reveal structural relaxation that leads to changes in their physical properties including enthalpy, specific volume, and resistivity. Analyzing the short-range order (SRO) obtained from electron diffraction by transmission electron microscopy (TEM) in combination with Reverse-Monte-Carlo (RMC) simulations is shown to provide information on the atomic arrangement. The technique elaborated here features several benefits including reliability, accessibility, and allows for obtaining detailed structural data quickly. This is demonstrated with a detailed view of the structural changes in the as-deposited amorphous phase change material (PCM) GeTe. The data show a significant increase in the average bond angle upon thermal treatment. At the same time the fraction of tetrahedrally coordinated Ge atoms decreases due to an increase in octahedrally distorted and pyramidal motifs. This finding provides further evidence for the atomic processes that govern structural relaxation in amorphous GeTe and other PCMs. A thorough literature review finally unveils possible origins of the large discrepancies reported on the structure of amorphous GeTe.
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Affiliation(s)
- Christian Stenz
- Institute of Physics IARWTH Aachen University52074AachenGermany
| | - Julian Pries
- Institute of Physics IARWTH Aachen University52074AachenGermany
| | | | - Michael W. Gaultois
- Leverhulme Research Centre for Functional Materials DesignUniversity of Liverpool, Materials Innovation FactoryLiverpoolL69 7ZDUK
| | - Matthias Wuttig
- Institute of Physics IARWTH Aachen University52074AachenGermany
- Peter Grünberg Institute (PGI 10)Forschungszentrum Jülich GmbH52425JülichGermany
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3
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Fijan D, Wilson M. Thermodynamic anomalies, polyamorphism and all that. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2023; 381:20220336. [PMID: 37634531 PMCID: PMC10460645 DOI: 10.1098/rsta.2022.0336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 05/18/2023] [Indexed: 08/29/2023]
Abstract
The appearance and evolution of thermodynamics anomalies, and related properties, are studied for two classes of system, modelling those dominated by covalent and ionic interactions, respectively. Such anomalies are most familiar in the density but are also present in other thermodynamics variables such as the compressibility and heat capacity. By systematically varying key model parameters the emergence and evolution of these anomalies can be tracked across the phase space. The interaction of the anomalies can often be rationalized by thermodynamics 'rules'. The emergence of these anomalies may also be correlated with the appearance of polyamorphism, the existence of multiple amorphous states which differ in density and entropy. This article is part of the theme issue 'Exploring the length scales, timescales and chemistry of challenging materials (Part 1)'.
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Affiliation(s)
- Domagoj Fijan
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, UK
| | - Mark Wilson
- Department of Chemistry, Physical and Theoretical Chemistry Laboratory, University of Oxford, Oxford, UK
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4
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Fried NR, Longo TJ, Anisimov MA. Thermodynamic modeling of fluid polyamorphism in hydrogen at extreme conditions. J Chem Phys 2022; 157:101101. [DOI: 10.1063/5.0107043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Fluid polyamorphism, the existence of multiple amorphous fluid states in a single-component system, has been observed or predicted in a variety of substances. A remarkable example of this phenomenon is the fluid–fluid phase transition (FFPT) in high-pressure hydrogen between insulating and conducting high-density fluids. This transition is induced by the reversible dimerization/dissociation of the molecular and atomistic states of hydrogen. In this work, we present the first attempt to thermodynamically model the FFPT in hydrogen at extreme conditions. Our predictions for the phase coexistence and the reaction equilibrium of the two alternative forms of fluid hydrogen are based on experimental data and supported by the results of simulations. Remarkably, we find that the law of corresponding states can be utilized to construct a unified equation of state combining the available computational results for different models of hydrogen and the experimental data.
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Affiliation(s)
- Nathaniel R. Fried
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA
| | - Thomas J. Longo
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA
| | - Mikhail A. Anisimov
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, USA
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5
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Shumovskyi NA, Longo TJ, Buldyrev SV, Anisimov MA. Modeling fluid polyamorphism through a maximum-valence approach. Phys Rev E 2022; 106:015305. [PMID: 35974620 DOI: 10.1103/physreve.106.015305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 06/07/2022] [Indexed: 06/15/2023]
Abstract
We suggest a simple model to describe polyamorphism in single-component fluids using a maximum-valence approach. The model contains three types of interactions: (i) Atoms attract each other by van der Waals forces that generate a liquid-gas transition at low pressures, (ii) atoms may form covalent bonds that induce association, and (iii) atoms with maximal valence attract or repel each other stronger than other atoms, thus generating liquid-liquid separation. As an example, we qualitatively compare this model with the behavior of liquid sulfur and show that condition (iii) generates a liquid-liquid phase transition in addition to the liquid-gas phase transition.
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Affiliation(s)
| | - Thomas J Longo
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA
| | - Sergey V Buldyrev
- Department of Physics, Yeshiva University, New York, New York 10033, USA and Department of Physics, Boston University, Massachusetts 02215, USA
| | - Mikhail A Anisimov
- Department of Chemical and Biomolecular Engineering and Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA
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6
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Longo TJ, Anisimov MA. Phase transitions affected by natural and forceful molecular interconversion. J Chem Phys 2022; 156:084502. [DOI: 10.1063/5.0081180] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
If a binary liquid mixture, composed of two alternative species with equal amounts, is quenched from a high temperature to a low temperature, below the critical point of demixing, then the mixture will phase separate through a process known as spinodal decomposition. However, if the two alternative species are allowed to interconvert, either naturally (e.g., the equilibrium interconversion of enantiomers) or forcefully (e.g., via an external source of energy or matter), then the process of phase separation may drastically change. In this case, depending on the nature of interconversion, two phenomena could be observed: either phase amplification, the growth of one phase at the expense of another stable phase, or microphase separation, the formation of nongrowing (steady-state) microphase domains. In this work, we phenomenologically generalize the Cahn–Hilliard theory of spinodal decomposition to include the molecular interconversion of species and describe the physical properties of systems undergoing either phase amplification or microphase separation. We apply the developed phenomenology to accurately describe the simulation results of three atomistic models that demonstrate phase amplification and/or microphase separation. We also discuss the application of our approach to phase transitions in polyamorphic liquids. Finally, we describe the effects of fluctuations of the order parameter in the critical region on phase amplification and microphase separation.
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Affiliation(s)
- Thomas J. Longo
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA
| | - Mikhail A. Anisimov
- Institute for Physical Science and Technology, University of Maryland, College Park, Maryland 20742, USA
- Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742, USA
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7
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Lupi L, Vázquez Ramírez B, Gallo P. Dynamical crossover and its connection to the Widom line in supercooled TIP4P/Ice water. J Chem Phys 2021; 155:054502. [PMID: 34364341 DOI: 10.1063/5.0059190] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We perform molecular dynamics simulations with the TIP4P/Ice water model to characterize the relationship between dynamics and thermodynamics of liquid water in the supercooled region. We calculate the relevant properties of the phase diagram, and we find that TIP4P/Ice presents a retracing line of density maxima, similar to what was previously found for atomistic water models and models of other tetrahedral liquids. For this model, a liquid-liquid critical point between a high-density liquid and a low-density liquid was recently found. We compute the lines of the maxima of isothermal compressibility and the minima of the coefficient of thermal expansion in the one phase region, and we show that these lines point to the liquid-liquid critical point while collapsing on the Widom line. This line is the line of the maxima of correlation length that emanates from a second order critical point in the one phase region. Supercooled water was found to follow mode coupling theory and to undergo a transition from a fragile to a strong behavior right at the crossing of the Widom line. We find here that this phenomenology also happens for TIP4P/Ice. Our results appear, therefore, to be a general characteristic of supercooled water, which does not depend on the interaction potential used, and they reinforce the idea that the dynamical crossover from a region where the relaxation mechanism is dominated by cage relaxation to a region where cages are frozen and hopping dominates is correlated in water to a phase transition between a high-density liquid and a low-density liquid.
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Affiliation(s)
- Laura Lupi
- Dipartimento di Matematica e Fisica, Università Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy
| | - Benjamín Vázquez Ramírez
- Dipartimento di Matematica e Fisica, Università Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy
| | - Paola Gallo
- Dipartimento di Matematica e Fisica, Università Roma Tre, Via della Vasca Navale 84, 00146 Rome, Italy
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8
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Horstmann R, Vogel M. Relations between thermodynamics, structures, and dynamics for modified water models in their supercooled regimes. J Chem Phys 2021; 154:054502. [DOI: 10.1063/5.0037080] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- R. Horstmann
- Institute of Condensed Matter Physics, Technische Universität Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany
| | - M. Vogel
- Institute of Condensed Matter Physics, Technische Universität Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany
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9
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Liquid-liquid transition as a perturbation on the van der Waals' equation. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Abstract
The origin of water's anomalies has been a matter of long-standing debate. A two-state model, dating back to Röntgen, relies on the dynamical coexistence of two types of local structures-locally favored tetrahedral structure (LFTS) and disordered normal-liquid structure (DNLS)-in liquid water. Phenomenologically, this model not only explains water's thermodynamic anomalies but also can rationalize the existence of a liquid-liquid critical point (LLCP) if there is a cooperative formation of LFTS. We recently found direct evidence for the coexistence of LFTS and DNLS in the experimental structure factor of liquid water. However, the existence of the LLCP and its impact on water's properties has remained elusive, leaving the origin of water's anomalies unclear. Here we propose a unique strategy to locate the LLCP of liquid water. First, we make a comprehensive analysis of a large set of experimental structural, thermodynamic, and dynamic data based on our hierarchical two-state model. This model predicts that the two thermodynamic and dynamical fluctuation maxima lines should cross at the LLCP if it exists, which we confirm by hundred-microsecond simulations for model waters. Based on recent experimental results of the compressibility and diffusivity measurements in the no man's land, we reveal that the two lines cross around 184 K and 173 MPa for real water, suggesting the presence of the LLCP around there. Nevertheless, we find that the criticality is almost negligible in the experimentally accessible region of liquid water because it is too far from the LLCP. Our findings would provide a clue to settle the long-standing debate.
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11
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Affiliation(s)
- Hajime Tanaka
- Department of Fundamental Engineering, Institute of Industrial Science, University of Tokyo, Meguro-ku, Tokyo 153-8505, Japan
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12
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Sukhomlinov SV, Müser MH. A mixed radial, angular, three-body distribution function as a tool for local structure characterization: Application to single-component structures. J Chem Phys 2020; 152:194502. [PMID: 33687244 DOI: 10.1063/5.0007964] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A mixed radial, angular three-body distribution function g3(rBC, θABC) is introduced, which allows the local atomic order to be more easily characterized in a single graph than with conventional correlation functions. It can be defined to be proportional to the probability of finding an atom C at a distance rBC from atom B while making an angle θABC with atoms A and B, under the condition that atom A is the nearest neighbor of B. As such, our correlation function contains, for example, the likelihood of angles formed between the nearest and the next-nearest-neighbor bonds. To demonstrate its use and usefulness, a visual library for many one-component crystals is produced first and then employed to characterize the local order in a diverse body of elemental condensed-matter systems. Case studies include the analysis of a grain boundary, several liquids (argon, copper, and antimony), and polyamorphism in crystalline and amorphous silicon including that obtained in a tribological interface.
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Affiliation(s)
- Sergey V Sukhomlinov
- Department of Materials Science and Engineering, Universität des Saarlandes, Saarbrücken, Germany
| | - Martin H Müser
- Department of Materials Science and Engineering, Universität des Saarlandes, Saarbrücken, Germany
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13
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Ricci F, Palmer JC, Goswami Y, Sastry S, Angell CA, Debenedetti PG. A computational investigation of the thermodynamics of the Stillinger-Weber family of models at supercooled conditions. Mol Phys 2019. [DOI: 10.1080/00268976.2019.1649496] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Francesco Ricci
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey, USA
- Material and Analytical Sciences Department, Boehringer Ingelheim Pharmaceuticals Inc, Ridgefield, Connecticut, USA
| | - Jeremy C. Palmer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas, USA
| | - Yagyik Goswami
- Jawaharlal Nehru Center for Advanced Scientific Research, Bengaluru, India
| | - Srikanth Sastry
- Jawaharlal Nehru Center for Advanced Scientific Research, Bengaluru, India
| | - C. Austen Angell
- School of Molecular Sciences, Arizona State University, Tempe, Arizona, USA
| | - Pablo G. Debenedetti
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey, USA
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14
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Palmer JC, Poole PH, Sciortino F, Debenedetti PG. Advances in Computational Studies of the Liquid–Liquid Transition in Water and Water-Like Models. Chem Rev 2018; 118:9129-9151. [DOI: 10.1021/acs.chemrev.8b00228] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeremy C. Palmer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States
| | - Peter H. Poole
- Department of Physics, St. Francis Xavier University, Antigonish, NS B2G 2W5, Canada
| | - Francesco Sciortino
- Dipartimento di Fisica and CNR-ISC, Sapienza Universita’ di Roma, Piazzale A. Moro 5, 00185 Rome, Italy
| | - Pablo G. Debenedetti
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
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15
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Pafong Sanjon E, Drossel B, Vogel M. Effects of the bond polarity on the structural and dynamical properties of silica-like liquids. J Chem Phys 2018; 148:104506. [PMID: 29544292 DOI: 10.1063/1.5017681] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Silica is a network-forming liquid that shares many properties with water due to its tetrahedral structure. It undergoes a transition from a fragile to a strong liquid as the temperature is decreased, which is accompanied by a structural change to lower density and higher tetrahedral order. In order to disentangle the effects of Coulomb and van der Waals interactions on the structure and dynamics of liquid silica, we modify the bond polarity by changing the partial charges assigned to each atom. Using molecular dynamics simulations, we show that density, tetrahedral order, and structural relaxation times decrease when reducing bond polarity. Moreover, we find that the density maximum and the fragile-to-strong transition move to lower temperatures until they eventually vanish when the partial charges are decreased below approximately 75% of their regular value. Irrespective of whether strong or fragile behavior exists, structural relaxation is governed by hopping motion at sufficiently low temperatures. As long as there is a strong regime, the energy barrier associated with strong dynamics decreases with decreasing partial charges, but the dependence on the bond polarity differs from that of the activation energy in the Arrhenius regime at high temperatures. We show that the fragile-to-strong transition is associated with structural changes occurring between the first and second coordination shells that lead to a decrease in density and an increase in tetrahedral order. In particular, independent of the value of the partial charges, the distribution of the local structures is the same at this dynamic crossover, but we find no evidence that the effect occurs upon crossing the Widom line. In the fragile regime at intermediate temperatures, the relaxation times are well described by a previously proposed model which decomposes the apparent activation energy into a constant single-particle contribution and a temperature-dependent collective contribution. However, our results for silica-like melts do not obey several common relations of the model parameters reported for molecular glass formers.
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Affiliation(s)
- E Pafong Sanjon
- Institut für Festkörperphysik, Technische Universität Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany
| | - B Drossel
- Institut für Festkörperphysik, Technische Universität Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany
| | - M Vogel
- Institut für Festkörperphysik, Technische Universität Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany
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16
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Higuchi S, Kato D, Awaji D, Kim K. Connecting thermodynamic and dynamical anomalies of water-like liquid-liquid phase transition in the Fermi–Jagla model. J Chem Phys 2018. [DOI: 10.1063/1.5017105] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Saki Higuchi
- Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
| | - Daiki Kato
- Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
| | - Daisuke Awaji
- Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan
| | - Kang Kim
- Division of Chemical Engineering, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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17
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Bordin JR, Barbosa MC. Waterlike anomalies in a two-dimensional core-softened potential. Phys Rev E 2018; 97:022604. [PMID: 29548200 DOI: 10.1103/physreve.97.022604] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Indexed: 06/08/2023]
Abstract
We investigate the structural, thermodynamic, and dynamic behavior of a two-dimensional (2D) core-corona system using Langevin dynamics simulations. The particles are modeled by employing a core-softened potential which exhibits waterlike anomalies in three dimensions. In previous studies in a quasi-2D system a new region in the pressure versus temperature phase diagram of structural anomalies was observed. Here we show that for the two-dimensional case two regions in the pressure versus temperature phase diagram with structural, density, and diffusion anomalies are observed. Our findings indicate that, while the anomalous region at lower densities is due the competition between the two length scales in the potential at higher densities, the anomalous region is related to the reentrance of the melting line.
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Affiliation(s)
- José Rafael Bordin
- Campus Caçapava do Sul, Universidade Federal do Pampa, Avenida Pedro Anunciação, 111, CEP 96570-000 Caçapava do Sul, Rio Grande do Sul, Brazil
| | - Marcia C Barbosa
- Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, CEP 91501-970 Porto Alegre, Rio Grande do Sul, Brazil
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18
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Guo J, Palmer JC. Fluctuations near the liquid–liquid transition in a model of silica. Phys Chem Chem Phys 2018; 20:25195-25202. [DOI: 10.1039/c8cp04237c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular dynamics simulations reveal anomalous small-angle scattering and liquid–liquid phase separation in an ionic model of silica.
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Affiliation(s)
- Jingxiang Guo
- Department of Chemical and Biomolecular Engineering
- University of Houston
- Houston
- USA
| | - Jeremy C. Palmer
- Department of Chemical and Biomolecular Engineering
- University of Houston
- Houston
- USA
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19
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Chen R, Lascaris E, Palmer JC. Liquid–liquid phase transition in an ionic model of silica. J Chem Phys 2017. [DOI: 10.1063/1.4984335] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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20
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Ricci F, Debenedetti PG. A free energy study of the liquid-liquid phase transition of the Jagla two-scale potential. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1315-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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21
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Gallo P, Amann-Winkel K, Angell CA, Anisimov MA, Caupin F, Chakravarty C, Lascaris E, Loerting T, Panagiotopoulos AZ, Russo J, Sellberg JA, Stanley HE, Tanaka H, Vega C, Xu L, Pettersson LGM. Water: A Tale of Two Liquids. Chem Rev 2016; 116:7463-500. [PMID: 27380438 PMCID: PMC5424717 DOI: 10.1021/acs.chemrev.5b00750] [Citation(s) in RCA: 456] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Water is the most abundant liquid
on earth and also the substance
with the largest number of anomalies in its properties. It is a prerequisite
for life and as such a most important subject of current research
in chemical physics and physical chemistry. In spite of its simplicity
as a liquid, it has an enormously rich phase diagram where different
types of ices, amorphous phases, and anomalies disclose a path that
points to unique thermodynamics of its supercooled liquid state that
still hides many unraveled secrets. In this review we describe the
behavior of water in the regime from ambient conditions to the deeply
supercooled region. The review describes simulations and experiments
on this anomalous liquid. Several scenarios have been proposed to
explain the anomalous properties that become strongly enhanced in
the supercooled region. Among those, the second critical-point scenario
has been investigated extensively, and at present most experimental
evidence point to this scenario. Starting from very low temperatures,
a coexistence line between a high-density amorphous phase and a low-density
amorphous phase would continue in a coexistence line between a high-density
and a low-density liquid phase terminating in a liquid–liquid
critical point, LLCP. On approaching this LLCP from the one-phase
region, a crossover in thermodynamics and dynamics can be found. This
is discussed based on a picture of a temperature-dependent balance
between a high-density liquid and a low-density liquid favored by,
respectively, entropy and enthalpy, leading to a consistent picture
of the thermodynamics of bulk water. Ice nucleation is also discussed,
since this is what severely impedes experimental investigation of
the vicinity of the proposed LLCP. Experimental investigation of stretched
water, i.e., water at negative pressure, gives access to a different
regime of the complex water diagram. Different ways to inhibit crystallization
through confinement and aqueous solutions are discussed through results
from experiments and simulations using the most sophisticated and
advanced techniques. These findings represent tiles of a global picture
that still needs to be completed. Some of the possible experimental
lines of research that are essential to complete this picture are
explored.
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Affiliation(s)
- Paola Gallo
- Dipartimento di Matematica e Fisica, Università Roma Tre , Via della Vasca Navale 84, 00146 Rome, Italy
| | - Katrin Amann-Winkel
- Department of Physics, AlbaNova University Center, Stockholm University , SE-106 91 Stockholm, Sweden
| | - Charles Austen Angell
- Department of Chemistry and Biochemistry, Arizona State University , Tempe, Arizona 85287, United States
| | - Mikhail Alexeevich Anisimov
- Institute for Physical Science and Technology and Department of Chemical and Biomolecular Engineering, University of Maryland , College Park, Maryland 20742, United States
| | - Frédéric Caupin
- Institut Lumière Matière, UMR5306 Université Claude Bernard Lyon 1-CNRS, Université de Lyon, Institut Universitaire de France , 69622 Villeurbanne, France
| | - Charusita Chakravarty
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas , New Delhi 110016, India
| | - Erik Lascaris
- Center for Polymer Studies and Department of Physics, Boston University , Boston, Massachusetts 02215, United States
| | - Thomas Loerting
- Institute of Physical Chemistry, University of Innsbruck , 6020 Innsbruck, Austria
| | | | - John Russo
- Institute of Industrial Science, University of Tokyo , 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan.,School of Mathematics, University of Bristol , Bristol BS8 1TW, United Kingdom
| | - Jonas Alexander Sellberg
- Biomedical and X-ray Physics, Department of Applied Physics, AlbaNova University Center, KTH Royal Institute of Technology , SE-106 91 Stockholm, Sweden
| | - Harry Eugene Stanley
- Center for Polymer Studies and Department of Physics, Boston University , Boston, Massachusetts 02215, United States
| | - Hajime Tanaka
- Institute of Industrial Science, University of Tokyo , 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Carlos Vega
- Departamento de Quimica Fisica, Facultad de Ciencias Quimicas, Universidad Complutense de Madrid , 28040 Madrid, Spain
| | - Limei Xu
- International Centre for Quantum Materials and School of Physics, Peking University , Beijing 100871, China.,Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
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22
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Lu J, Chakravarty C, Molinero V. Relationship between the line of density anomaly and the lines of melting, crystallization, cavitation, and liquid spinodal in coarse-grained water models. J Chem Phys 2016; 144:234507. [DOI: 10.1063/1.4953854] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jibao Lu
- Department of Chemistry, The University of Utah, Salt Lake City, Utah 84112-0850, USA
| | | | - Valeria Molinero
- Department of Chemistry, The University of Utah, Salt Lake City, Utah 84112-0850, USA
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23
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Vollmayr-Lee K, Gorman CH, Castillo HE. Universal scaling in the aging of the strong glass former SiO2. J Chem Phys 2016; 144:234510. [PMID: 27334182 DOI: 10.1063/1.4953911] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We show that the aging dynamics of a strong glass former displays a strikingly simple scaling behavior, connecting the average dynamics with its fluctuations, namely, the dynamical heterogeneities. We perform molecular dynamics simulations of SiO2 with van Beest-Kramer-van Santen interactions, quenching the system from high to low temperature, and study the evolution of the system as a function of the waiting time tw measured from the instant of the quench. We find that both the aging behavior of the dynamic susceptibility χ4 and the aging behavior of the probability distribution P(fs,r) of the local incoherent intermediate scattering function fs,r can be described by simple scaling forms in terms of the global incoherent intermediate scattering function C. The scaling forms are the same that have been found to describe the aging of several fragile glass formers and that, in the case of P(fs,r), have been also predicted theoretically. A thorough study of the length scales involved highlights the importance of intermediate length scales. We also analyze directly the scaling dependence on particle type and on wavevector q and find that both the average and the fluctuations of the slow aging dynamics are controlled by a unique aging clock, which is not only independent of the wavevector q, but is also the same for O and Si atoms.
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Affiliation(s)
- Katharina Vollmayr-Lee
- Department of Physics and Astronomy, Bucknell University, Lewisburg, Pennsylvania 17837, USA
| | - Christopher H Gorman
- Department of Mathematics, University of California, Santa Barbara, California 93106, USA
| | - Horacio E Castillo
- Department of Physics and Astronomy and Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, Ohio 45701, USA
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24
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Lascaris E. Tunable Liquid-Liquid Critical Point in an Ionic Model of Silica. PHYSICAL REVIEW LETTERS 2016; 116:125701. [PMID: 27058086 DOI: 10.1103/physrevlett.116.125701] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Indexed: 06/05/2023]
Abstract
Recently, it was shown that the Woodcock-Angell-Cheeseman model for liquid silica [L. V. Woodcock, C. A. Angell, and P. Cheeseman, J. Chem. Phys. 65, 1565 (1976)] is remarkably close to having a liquid-liquid critical point (LLCP). We demonstrate that increasing the ion charge separates the global maxima of the response functions, while reducing the charge smoothly merges them into a LLCP, a phenomenon that might be experimentally observable with charged colloids. An analysis of the Si and O coordination numbers suggests that a sufficiently low Si/O coordination number ratio is needed to attain a LLCP.
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Affiliation(s)
- Erik Lascaris
- Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215, USA
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25
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Izvekov S, Rice BM. A new parameter-free soft-core potential for silica and its application to simulation of silica anomalies. J Chem Phys 2015; 143:244506. [DOI: 10.1063/1.4937394] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Sergei Izvekov
- Weapons and Materials Research Directorate, U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, USA
| | - Betsy M. Rice
- Weapons and Materials Research Directorate, U.S. Army Research Laboratory, Aberdeen Proving Ground, Maryland 21005, USA
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26
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Bertolazzo AA, Kumar A, Chakravarty C, Molinero V. Water-like Anomalies and Phase Behavior of a Pair Potential that Stabilizes Diamond. J Phys Chem B 2015; 120:1649-59. [DOI: 10.1021/acs.jpcb.5b08432] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andressa A. Bertolazzo
- Department of Chemistry, The University of Utah, Salt Lake City, Utah 84112-0850, United States
- Department of Chemistry, Indian Institute of Technology-Delhi, New Delhi 110016, India
| | - Abhinaw Kumar
- Department of Chemistry, The University of Utah, Salt Lake City, Utah 84112-0850, United States
- Department of Chemistry, Indian Institute of Technology-Delhi, New Delhi 110016, India
| | - Charusita Chakravarty
- Department of Chemistry, The University of Utah, Salt Lake City, Utah 84112-0850, United States
- Department of Chemistry, Indian Institute of Technology-Delhi, New Delhi 110016, India
| | - Valeria Molinero
- Department of Chemistry, The University of Utah, Salt Lake City, Utah 84112-0850, United States
- Department of Chemistry, Indian Institute of Technology-Delhi, New Delhi 110016, India
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27
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Luo J, Xu L, Angell CA, Stanley HE, Buldyrev SV. Physics of the Jagla model as the liquid-liquid coexistence line slope varies. J Chem Phys 2015; 142:224501. [DOI: 10.1063/1.4921559] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Jiayuan Luo
- Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - Limei Xu
- International Center for Quantum Materials, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing, China
| | - C. Austen Angell
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, USA
| | - H. Eugene Stanley
- Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - Sergey V. Buldyrev
- Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215, USA
- Department of Physics, Yeshiva University, 500 West 185th Street, New York, New York 10033, USA
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28
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Krott LB, Bordin JR, Barraz NM, Barbosa MC. Effects of confinement on anomalies and phase transitions of core-softened fluids. J Chem Phys 2015; 142:134502. [PMID: 25854248 DOI: 10.1063/1.4916563] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Leandro B. Krott
- Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, CEP 91501-970, Porto Alegre, RS, Brazil
| | - José Rafael Bordin
- Campus Caçapava do Sul, Universidade Federal do Pampa, Av. Pedro Anunciação, s/n, CEP 96570-000, Caçapava do Sul, RS, Brazil
| | - Ney M. Barraz
- Campus Cerro Largo, Universidade Federal da Fronteira Sul, Av. Jacob Reinaldo Haupenthal, 1580. CEP 97900-000, Cerro Largo, RS, Brazil
| | - Marcia C. Barbosa
- Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, CEP 91501-970, Porto Alegre, RS, Brazil
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29
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Lascaris E, Hemmati M, Buldyrev SV, Stanley HE, Angell CA. Diffusivity and short-time dynamics in two models of silica. J Chem Phys 2015; 142:104506. [DOI: 10.1063/1.4913747] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Erik Lascaris
- Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - Mahin Hemmati
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, USA
| | - Sergey V. Buldyrev
- Department of Physics, Yeshiva University, 500 West 185th Street, New York, New York 10033, USA
| | - H. Eugene Stanley
- Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215, USA
| | - C. Austen Angell
- Department of Chemistry and Biochemistry, Arizona State University, Tempe, Arizona 85287, USA
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30
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Suzuki Y, Mishima O. Experimentally proven liquid-liquid critical point of dilute glycerol-water solution at 150 K. J Chem Phys 2014; 141:094505. [DOI: 10.1063/1.4894416] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Yoshiharu Suzuki
- National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
| | - Osamu Mishima
- National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
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