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Imada H, Imai-Imada M, Ouyang X, Muranaka A, Kim Y. Anti-Kasha emissions of single molecules in a plasmonic nanocavity. J Chem Phys 2022; 157:104302. [DOI: 10.1063/5.0102087] [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
Kasha's rule generally holds true for solid-state molecular systems, where the rates of internal conversion and vibrational relaxation are sufficiently higher than the luminescence rate. In contrast, in systems where plasmons and matter interact strongly, the luminescence rate is significantly enhanced, leading to the emergence of luminescence that does not obey Kasha's rule. In this work, we investigate the anti-Kasha emissions of single molecules, free-base and magnesium naphthalocyanine (H2Nc and MgNc), in a plasmonic nanocavity formed between the tip of a scanning tunneling microscope (STM) and metal substrate. A narrow-line tunable laser was employed to precisely reveal the excited-state levels of a single molecule located under the tip and to selectively excite it into a specific excited state, followed by obtaining STM-photoluminescence (STM-PL) spectrum to reveal energy relaxation from the state. The excitation to higher-lying states of H2Nc caused various changes in the emission spectrum, such as broadening and the appearance of new peaks, implying the breakdown of Kasha's rule. These observations indicate emissions from the vibrationally excited states in the first singlet excited state ( S1) and second singlet excited state ( S2), as well as internal conversion from S2 to S1. Moreover, we obtained direct evidence of electronic and vibronic transitions from the vibrationally excited states, from the STM-PL measurements of MgNc. The results obtained herein shed light on the energy dynamics of molecular systems under a plasmonic field and highlight the possibility of obtaining various energy-converting functions using anti-Kasha processes.
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Togo A, Hayashi H, Tadano T, Tsutsui S, Tanaka I. LO-mode phonon of KCl and NaCl at 300 K by inelastic x-ray scattering measurements and first principles calculations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:365401. [PMID: 35728792 DOI: 10.1088/1361-648x/ac7b01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/21/2022] [Indexed: 06/15/2023]
Abstract
Longitudinal-optical (LO) mode phonon branches of KCl and NaCl were measured using inelastic x-ray scattering (IXS) at 300 K and calculated by the first-principles phonon calculation with the stochastic self-consistent harmonic approximation. Spectral shapes of the IXS measurements and calculated spectral functions agreed well. We analyzed the calculated spectral functions that provide higher resolutions of the spectra than the IXS measurements. Due to strong anharmonicity, the spectral functions of these phonon branches have several peaks and the LO modes along Γ-L paths are disconnected.
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Affiliation(s)
- Atsushi Togo
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
- Center for Elements Strategy Initiative for Structural Materials, Kyoto University, Sakyo, Kyoto 606-8501, Japan
| | - Hiroyuki Hayashi
- Department of Materials Science and Engineering, Kyoto University, Sakyo, Kyoto 606-8501, Japan
| | - Terumasa Tadano
- Research Center for Magnetic and Spintronic Materials, National Institute for Materials Science, Tsukuba, Ibaraki 305-0047, Japan
| | - Satoshi Tsutsui
- Japan Synchrotron Radiation Research Institute, Sayo-cho, Hyogo 679-5198, Japan
- Institute of Quantum Beam Science, Graduate School of Science and Engineering, Ibaraki University, Hitachi, Ibaraki 316-8511, Japan
| | - Isao Tanaka
- Center for Elements Strategy Initiative for Structural Materials, Kyoto University, Sakyo, Kyoto 606-8501, Japan
- Department of Materials Science and Engineering, Kyoto University, Sakyo, Kyoto 606-8501, Japan
- Nanostructures Research Laboratory, Japan Fine Ceramics Center, Atsuta, Nagoya 456-8587, Japan
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Zhang L, Wang H, Muniz MC, Panagiotopoulos AZ, Car R, E W. A deep potential model with long-range electrostatic interactions. J Chem Phys 2022; 156:124107. [DOI: 10.1063/5.0083669] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Machine learning models for the potential energy of multi-atomic systems, such as the deep potential (DP) model, make molecular simulations with the accuracy of quantum mechanical density functional theory possible at a cost only moderately higher than that of empirical force fields. However, the majority of these models lack explicit long-range interactions and fail to describe properties that derive from the Coulombic tail of the forces. To overcome this limitation, we extend the DP model by approximating the long-range electrostatic interaction between ions (nuclei + core electrons) and valence electrons with that of distributions of spherical Gaussian charges located at ionic and electronic sites. The latter are rigorously defined in terms of the centers of the maximally localized Wannier distributions, whose dependence on the local atomic environment is modeled accurately by a deep neural network. In the DP long-range (DPLR) model, the electrostatic energy of the Gaussian charge system is added to short-range interactions that are represented as in the standard DP model. The resulting potential energy surface is smooth and possesses analytical forces and virial. Missing effects in the standard DP scheme are recovered, improving on accuracy and predictive power. By including long-range electrostatics, DPLR correctly extrapolates to large systems the potential energy surface learned from quantum mechanical calculations on smaller systems. We illustrate the approach with three examples: the potential energy profile of the water dimer, the free energy of interaction of a water molecule with a liquid water slab, and the phonon dispersion curves of the NaCl crystal.
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Affiliation(s)
| | - Han Wang
- Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Fenghao East Road 2, Beijing 100094, People’s Republic of China
- HEDPS, CAPT, College of Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Maria Carolina Muniz
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, USA
| | | | - Roberto Car
- Department of Chemistry, Department of Physics, Program in Applied and Computational Mathematics, Princeton Institute for the Science and Technology of Materials, Princeton University, Princeton, New Jersey 08544, USA
| | - Weinan E
- School of Mathematical Sciences, Peking University, Beijing 100871, People’s Republic of China
- AI for Science Institute, Beijing, People’s Republic of China
- Department of Mathematics and Program in Applied and Computational Mathematics, Princeton University, Princeton, New Jersey 08544, USA
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Lee CC, Hsu CE, Hsueh HC. Partitioning interatomic force constants for first-principles phonon calculations: applications to NaCl, PbTiO 3, monolayer CrI 3, and twisted bilayer graphene. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2020; 33:055902. [PMID: 33086197 DOI: 10.1088/1361-648x/abc358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
First-principles phonon calculations have been widely performed for studying vibrational properties of condensed matter, where the dynamical matrix is commonly constructed via supercell force-constant calculations or the linear response approach. With different manners, a supercell can be introduced in both methods. Unless the supercell is large enough, the interpolated phonon property highly depends on the shape and size of the supercell and the imposed periodicity could give unphysical results that can be easily overlooked. Along this line, we discuss how a traditional method can be used to partition the force constants at the supercell boundary and then propose a more flexible method based on the translational symmetry and interatomic distances. The partition method is also compatible with the mixed-space approach for describing LO-TO splitting. We have applied the proposed partition method to NaCl, PbTiO3, monolayer CrI3, and twisted bilayer graphene, where we show how the method can deliver reasonable results. The proper partition is especially important for studying moderate-size systems with low symmetry, such as two-dimensional materials on substrates, and useful for the implementation of phonon calculations in first-principles packages using atomic basis functions, where symmetry operations are usually not applied owing to the suitability for large-scale calculations.
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Affiliation(s)
- Chi-Cheng Lee
- Department of Physics, Tamkang University, Tamsui, New Taipei 251301, Taiwan
- Research Center for X-ray Science, College of Science, Tamkang University, Tamsui, New Taipei 251301, Taiwan
| | - Chin-En Hsu
- Department of Physics, Tamkang University, Tamsui, New Taipei 251301, Taiwan
| | - Hung-Chung Hsueh
- Department of Physics, Tamkang University, Tamsui, New Taipei 251301, Taiwan
- Research Center for X-ray Science, College of Science, Tamkang University, Tamsui, New Taipei 251301, Taiwan
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Ma H, Li C, Ma Y, Wang H, Rouse ZW, Zhang Z, Slebodnick C, Alatas A, Baker SP, Urban JJ, Tian Z. Supercompliant and Soft (CH_{3}NH_{3})_{3}Bi_{2}I_{9} Crystal with Ultralow Thermal Conductivity. PHYSICAL REVIEW LETTERS 2019; 123:155901. [PMID: 31702321 DOI: 10.1103/physrevlett.123.155901] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 06/28/2019] [Indexed: 06/10/2023]
Abstract
In this Letter, we show the phonon dispersion of (CH_{3}NH_{3})_{3}Bi_{2}I_{9} single crystals at 300 K measured by inelastic x-ray scattering. The frequencies of acoustic phonons are among the lowest of crystals. Nanoindentation measurements verified that these crystals are very compliant and considerably soft. The frequency overlap between acoustic and optical phonons results in strong acoustic-optical scattering. All these features lead to an ultralow thermal conductivity. The fundamental knowledge obtained from this study will accelerate the design of novel hybrid materials for energy applications.
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Affiliation(s)
- Hao Ma
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Chen Li
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Yunwei Ma
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - Heng Wang
- Molecular Foundry, Lawrence Berkeley National Laboratories, Berkeley, California 94720, USA
- Department of Mechanical, Materials, and Aerospace Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - Zachary W Rouse
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Zhuolei Zhang
- Molecular Foundry, Lawrence Berkeley National Laboratories, Berkeley, California 94720, USA
| | - Carla Slebodnick
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - Ahmet Alatas
- Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 64039, USA
| | - Shefford P Baker
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA
| | - Jeffrey J Urban
- Molecular Foundry, Lawrence Berkeley National Laboratories, Berkeley, California 94720, USA
| | - Zhiting Tian
- Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, New York 14853, USA
- Department of Mechanical Engineering, Virginia Tech, Blacksburg, Virginia 24061, USA
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Petretto G, Dwaraknath S, P C Miranda H, Winston D, Giantomassi M, van Setten MJ, Gonze X, Persson KA, Hautier G, Rignanese GM. High-throughput density-functional perturbation theory phonons for inorganic materials. Sci Data 2018; 5:180065. [PMID: 29714723 PMCID: PMC5928854 DOI: 10.1038/sdata.2018.65] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 02/23/2018] [Indexed: 11/09/2022] Open
Abstract
The knowledge of the vibrational properties of a material is of key importance to understand physical phenomena such as thermal conductivity, superconductivity, and ferroelectricity among others. However, detailed experimental phonon spectra are available only for a limited number of materials, which hinders the large-scale analysis of vibrational properties and their derived quantities. In this work, we perform ab initio calculations of the full phonon dispersion and vibrational density of states for 1521 semiconductor compounds in the harmonic approximation based on density functional perturbation theory. The data is collected along with derived dielectric and thermodynamic properties. We present the procedure used to obtain the results, the details of the provided database and a validation based on the comparison with experimental data.
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Affiliation(s)
- Guido Petretto
- Institute of Condensed Matter and Nanoscience (IMCN), Université catholique de Louvain, B-1348 Louvain-la-neuve, Belgium
| | - Shyam Dwaraknath
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Henrique P C Miranda
- Institute of Condensed Matter and Nanoscience (IMCN), Université catholique de Louvain, B-1348 Louvain-la-neuve, Belgium
| | - Donald Winston
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - Matteo Giantomassi
- Institute of Condensed Matter and Nanoscience (IMCN), Université catholique de Louvain, B-1348 Louvain-la-neuve, Belgium
| | - Michiel J van Setten
- Institute of Condensed Matter and Nanoscience (IMCN), Université catholique de Louvain, B-1348 Louvain-la-neuve, Belgium
| | - Xavier Gonze
- Institute of Condensed Matter and Nanoscience (IMCN), Université catholique de Louvain, B-1348 Louvain-la-neuve, Belgium
| | - Kristin A Persson
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.,Department of Materials Science and Engineering, University of California, Berkeley, California 94720, USA
| | - Geoffroy Hautier
- Institute of Condensed Matter and Nanoscience (IMCN), Université catholique de Louvain, B-1348 Louvain-la-neuve, Belgium
| | - Gian-Marco Rignanese
- Institute of Condensed Matter and Nanoscience (IMCN), Université catholique de Louvain, B-1348 Louvain-la-neuve, Belgium
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Imada H, Miwa K, Imai-Imada M, Kawahara S, Kimura K, Kim Y. Single-Molecule Investigation of Energy Dynamics in a Coupled Plasmon-Exciton System. PHYSICAL REVIEW LETTERS 2017; 119:013901. [PMID: 28731759 DOI: 10.1103/physrevlett.119.013901] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Indexed: 05/12/2023]
Abstract
We investigate the near-field interaction between an isolated free-base phthalocyanine molecule and a plasmon localized in the gap between an NaCl-covered Ag(111) surface and the tip apex of a scanning tunneling microscope. When the tip is located in the close proximity of the molecule, asymmetric dips emerge in the broad luminescence spectrum of the plasmon generated by the tunneling current. The origin of the dips is explained by energy transfer between the plasmon and molecular excitons and a quantum mechanical interference effect, where molecular vibrations provide additional degrees of freedom in the dynamic process.
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Affiliation(s)
- Hiroshi Imada
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Kuniyuki Miwa
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Miyabi Imai-Imada
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8651, Japan
| | - Shota Kawahara
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8651, Japan
| | - Kensuke Kimura
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Advanced Materials Science, Graduate School of Frontier Science, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8651, Japan
| | - Yousoo Kim
- Surface and Interface Science Laboratory, RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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Gutmann MJ, Graziano G, Mukhopadhyay S, Refson K, von Zimmerman M. Computation of diffuse scattering arising from one-phonon excitations in a neutron time-of-flight single-crystal Laue diffraction experiment. J Appl Crystallogr 2015; 48:1122-1129. [PMID: 26306090 PMCID: PMC4520289 DOI: 10.1107/s1600576715010912] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 06/05/2015] [Indexed: 12/03/2022] Open
Abstract
A methodology is presented to compute diffuse scattering arising from one-phonon excitations in a time-of-flight neutron single-crystal Laue diffraction experiment from density functional theory results. This methodology is illustrated using NaCl as an example. Direct phonon excitation in a neutron time-of-flight single-crystal Laue diffraction experiment has been observed in a single crystal of NaCl. At room temperature both phonon emission and excitation leave characteristic features in the diffuse scattering and these are well reproduced using abinitio phonons from density functional theory (DFT). A measurement at 20 K illustrates the effect of thermal population of the phonons, leaving the features corresponding to phonon excitation and strongly suppressing the phonon annihilation. A recipe is given to compute these effects combining DFT results with the geometry of the neutron experiment.
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Affiliation(s)
- Matthias J Gutmann
- ISIS Facility, Rutherford Appleton Laboratory , Chilton, Didcot, Oxfordshire OX11 0QX, UK
| | - Gabriella Graziano
- Thomas Young Centre, London Centre for Nanotechnology and Department of Chemistry, University College London , London WC1E 6BT, UK ; ISIS Facility, Rutherford Appleton Laboratory , Chilton, Didcot, Oxfordshire OX11 0QX, UK
| | | | - Keith Refson
- ISIS Facility, Rutherford Appleton Laboratory , Chilton, Didcot, Oxfordshire OX11 0QX, UK ; Department of Physics, Royal Holloway , University of London, Egham TW20 0EX, UK
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Computational Methods for the Assignment of Vibrational Modes in Crystalline Materials. TERAHERTZ SPECTROSCOPY AND IMAGING 2012. [DOI: 10.1007/978-3-642-29564-5_7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Muntwiler M, Zhu XY. Formation of two-dimensional polarons that are absent in three-dimensional crystals. PHYSICAL REVIEW LETTERS 2007; 98:246801. [PMID: 17677980 DOI: 10.1103/physrevlett.98.246801] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2007] [Indexed: 05/16/2023]
Abstract
We report the direct time domain observation of a many-body process in a two-dimensional system: small polaron formation from the localization of a conduction band electron in NaCl thin films of unit cell thickness. Contrary to theoretical prediction for bulk NaCl crystal where an electron polaron does not exist, time-resolved two-photon photoemission reveals small polaron formation from delocalized conduction band electrons in crystalline NaCl thin films. The increased deformability and the reduced electronic bandwidth of a crystalline lattice in the thin film format are both responsible for the formation of small polarons that are absent in bulk solids.
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Affiliation(s)
- M Muntwiler
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, USA
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12
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Laaksonen A, Clementi E. Theoretical study of some gas, liquid and crystal properties of sodium chloride usingab initiopotentials. Mol Phys 2006. [DOI: 10.1080/00268978500102491] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Cowley ER. The one-phonon Green function and the dielectric properties of sodium chloride. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3719/5/12/014] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Cowley ER. Anharmonic contributions to the thermodynamic properties of sodium chloride. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3719/4/9/019] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Sangster MJL, Atwood RM. Interionic potentials for alkali halides. II. Completely crystal independent specification of Born-Mayer potentials. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3719/11/8/015] [Citation(s) in RCA: 199] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Sangster MJ, Atwood RM, Schroder U. Interionic potentials for alkali halides. I. Crystal independent shell parameters and fitted Born-Mayer potentials. ACTA ACUST UNITED AC 2001. [DOI: 10.1088/0022-3719/11/8/014] [Citation(s) in RCA: 126] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kantorovich LN. Thermoelastic properties of perfect crystals with nonprimitive lattices. II. Application to KCl and NaCl. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:3535-3548. [PMID: 9979163 DOI: 10.1103/physrevb.51.3535] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Gong Z, Horton GK, Cowley ER. Monte Carlo and lattice-dynamics studies of the thermal and elastic properties of a rigid-ion model of sodium chloride. PHYSICAL REVIEW. B, CONDENSED MATTER 1988; 38:10820-10829. [PMID: 9945939 DOI: 10.1103/physrevb.38.10820] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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23
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Mahan GD, Mostoller M. Indirect short-range interactions in insulators. PHYSICAL REVIEW. B, CONDENSED MATTER 1986; 34:5726-5735. [PMID: 9940411 DOI: 10.1103/physrevb.34.5726] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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Jackman JA, Holden TM, Buyers WJ, Vogt O, Genossar J. Systematic study of the lattice dynamics of the uranium rocksalt-structure compounds. PHYSICAL REVIEW. B, CONDENSED MATTER 1986; 33:7144-7153. [PMID: 9938044 DOI: 10.1103/physrevb.33.7144] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Raptis C. Evidence of temperature-defect-induced first-order Raman scattering in pure NaCl crystals. PHYSICAL REVIEW. B, CONDENSED MATTER 1986; 33:1350-1352. [PMID: 9938404 DOI: 10.1103/physrevb.33.1350] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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26
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Hemley RJ, Gordon RG. Theoretical study of solid NaF and NaCl at high pressures and temperatures. ACTA ACUST UNITED AC 1985. [DOI: 10.1029/jb090ib09p07803] [Citation(s) in RCA: 86] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kushwaha MS. Bond‐bending‐force shell model for phonons in diatomic cubic crystals. J Chem Phys 1984. [DOI: 10.1063/1.447825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Winzer A. Zur quantentheoretischen Berechnung von Aktivierungsenergien für den Stoffübergang an Phasengrenzflächen von Ionenkristallen (IV). Zur radiochemischen Bestimmung und quantentheoretischen Berechnung von Aktivierungsenergien für den Stoffübergang an den Kristallflächen des NaCl. CRYSTAL RESEARCH AND TECHNOLOGY 1978. [DOI: 10.1002/crat.19780130810] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Rowe JM, Rush JJ, Vagelatos N, Price DL, Hinks DG, Susman S. Crystal dynamics of KCN and NaCN in the disordered cubic phase. J Chem Phys 1975. [DOI: 10.1063/1.430362] [Citation(s) in RCA: 86] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Jacucci G, Klein M, McDonald I. A molecular dynamics study of the lattice vibrations of sodium chloride. ACTA ACUST UNITED AC 1975. [DOI: 10.1051/jphyslet:0197500360409700] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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