1
|
Liu B, Allison W, Peng B, Avidor N, Monserrat B, Jardine AP. Distinguishing Quasiparticle-Phonon Interactions by Ultrahigh-Resolution Lifetime Measurements. PHYSICAL REVIEW LETTERS 2024; 132:176202. [PMID: 38728725 DOI: 10.1103/physrevlett.132.176202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 01/22/2024] [Accepted: 03/22/2024] [Indexed: 05/12/2024]
Abstract
We present a determination of quasiparticle-phonon interaction strengths at surfaces through measurements of phonon spectra with ultrahigh energy resolution. The lifetimes of low energy surface phonons on a pristine Ru(0001) surface were determined over a wide range of temperatures and an analysis of the temperature dependence enables us to attribute separate contributions from electron-phonon interactions, phonon-phonon interactions, and defect-phonon interactions. Strong electron-phonon interactions are evident at all temperatures and we show they dominate over phonon-phonon interactions below 400 K.
Collapse
Affiliation(s)
- Boyao Liu
- SMF Group, Cavendish Laboratory, University of Cambridge, 19 J J Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - William Allison
- SMF Group, Cavendish Laboratory, University of Cambridge, 19 J J Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Bo Peng
- TCM Group, Cavendish Laboratory, University of Cambridge, 19 J J Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Nadav Avidor
- SMF Group, Cavendish Laboratory, University of Cambridge, 19 J J Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| | - Bartomeu Monserrat
- TCM Group, Cavendish Laboratory, University of Cambridge, 19 J J Thomson Avenue, Cambridge CB3 0HE, United Kingdom
- Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - Andrew P Jardine
- SMF Group, Cavendish Laboratory, University of Cambridge, 19 J J Thomson Avenue, Cambridge CB3 0HE, United Kingdom
| |
Collapse
|
2
|
Affiliation(s)
- Francesco Ambrosio
- Department of Chemistry and Centre for Scientific Computing, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Alessandro Troisi
- Department of Chemistry and Centre for Scientific Computing, University of Warwick, Coventry CV4 7AL, United Kingdom
| |
Collapse
|
3
|
Schatschneider B, Chronister EL. Temperature dependent vibrational dynamics in crystalline para-terphenyl under high pressure. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
4
|
Ye S, Koshi M. Theoretical Studies of Energy Transfer Rates of Secondary Explosives. J Phys Chem B 2006; 110:18515-20. [PMID: 16970479 DOI: 10.1021/jp062815l] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Understanding the mechanism of shock-induced chemical reaction in secondary explosives is necessary to pursue the development and the safe use of new explosives having high performance and low sensitivity. In an effort to understand the mechanism, the energy transfer rates of such secondary explosives as PETN(I), PETN(II), delta-HMX, alpha-HMX, beta-HMX, RDX, ANTA, DMN, and NM have been evaluated based on the formula derived by Fried and Ruggiero [Fried, L. E.; Ruggiero, A. J. J. Phys. Chem. 1994, 98, 9786]. The energy transfer rates were determined in terms of the density of vibrational states and the unharmonic vibron-phonon coupling term, which were calculated by using a flexible potential containing both intra- and intermolecular terms. For the secondary explosives, a good correlation was found between the energy transfer rates and the impact sensitivity. The energy transfer rates are several times faster for the explosives with higher sensitivity such as PETN, HMX, and RDX than those with lower sensitivity such as ANTA, DMN, and NM. The calculations presented suggest the energy transfer rate in secondary explosive crystals is a significant factor in their sensitivity and introduction of double bond, or hydrogen bonds, or caged structure into secondary explosives is expected to decrease the sensitivity.
Collapse
Affiliation(s)
- Shuji Ye
- Department of Chemical System Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | | |
Collapse
|
5
|
Varandas AJC, Caridade PJSB, Zhang JZH, Cui Q, Han KL. Dynamics of X+CH4 (X=H,O,Cl) reactions: How reliable is transition state theory for fine-tuning potential energy surfaces? J Chem Phys 2006; 125:64312. [PMID: 16942291 DOI: 10.1063/1.2217953] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Trajectory calculations run on global potential energy surfaces have shown that the topology of the entrance channel has strong implications on the dynamics of the title reactions. This may explain why huge differences are observed between the rate constants calculated from global dynamical methods and those obtained from local methods that employ the same potential energy surfaces but ignore such topological details. Local dynamics approaches such as transition state-based theories should then be used with caution for fine-tuning potential energy surfaces, especially for fast reactions with polyatomic species since the key statistical assumptions of the theory may not be valid for all degrees of freedom.
Collapse
Affiliation(s)
- A J C Varandas
- Departamento de Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal.
| | | | | | | | | |
Collapse
|
6
|
McGrane SD, Barber J, Quenneville J. Anharmonic Vibrational Properties of Explosives from Temperature-Dependent Raman. J Phys Chem A 2005; 109:9919-27. [PMID: 16838908 DOI: 10.1021/jp0523219] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Raman spectra from 50 to 3500 cm(-1) and 4-296 K are analyzed for molecular crystal powders of the explosives pentaerythritol tetranitrate (PETN), beta-octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), and 1,3,5-triamino-2,4,6-trinitrobenzene (TATB) and the inert naphthalene. Temperature-dependent Raman spectroscopy is utilized for its sensitivity to anharmonic couplings between thermally populated phonons and higher frequency vibrations relevant to shock up-pumping. The data are analyzed with anharmonic perturbation theory, which is shown to have significant fundamental limitations in application to real data. Fitting to perturbation theory revealed no significant differences in averaged anharmonicities among the three explosives, all of which exhibited larger averaged anharmonicities than naphthalene by a factor of 3. Calculations estimating the multiphonon densities of states also failed to correlate clearly with shock sensitivity. However, striking differences in temperature-dependent lifetimes were obvious: PETN has long lived phonons and vibrons, HMX has long lived phonons but short lived vibrons, while TATB has short lived phonons and vibrons at low temperature. Naphthalene, widely used as a model system, has significantly different anharmonicities and density of states from any of the explosives. The data presented suggest the further hypothesis that hindered vibrational energy transfer in the molecular crystals is a significant factor in shock sensitivity.
Collapse
Affiliation(s)
- Shawn D McGrane
- Dynamic Experimentation and Applied Physics Divisions, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | | | | |
Collapse
|
7
|
|
8
|
Stolov AA, Herrebout WA, van der Veken BJ, Remizov AB. Orientational Diffusion of Methyl Groups in Crystalline CH3F: An Infrared Study. J Phys Chem B 1998. [DOI: 10.1021/jp982128x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- A. A. Stolov
- Department of Chemistry, Kazan State University, Kremlevskaya Street 18, Kazan 420008, Russia; Department of Chemistry, Universitair Centrum Antwerpen, Groenenborgerlaan 171, B2020 Antwerp, Belgium; and Kazan State Technological University, Karl Marx Street 68, Kazan 420015, Russia
| | - W. A. Herrebout
- Department of Chemistry, Kazan State University, Kremlevskaya Street 18, Kazan 420008, Russia; Department of Chemistry, Universitair Centrum Antwerpen, Groenenborgerlaan 171, B2020 Antwerp, Belgium; and Kazan State Technological University, Karl Marx Street 68, Kazan 420015, Russia
| | - B. J. van der Veken
- Department of Chemistry, Kazan State University, Kremlevskaya Street 18, Kazan 420008, Russia; Department of Chemistry, Universitair Centrum Antwerpen, Groenenborgerlaan 171, B2020 Antwerp, Belgium; and Kazan State Technological University, Karl Marx Street 68, Kazan 420015, Russia
| | - A. B. Remizov
- Department of Chemistry, Kazan State University, Kremlevskaya Street 18, Kazan 420008, Russia; Department of Chemistry, Universitair Centrum Antwerpen, Groenenborgerlaan 171, B2020 Antwerp, Belgium; and Kazan State Technological University, Karl Marx Street 68, Kazan 420015, Russia
| |
Collapse
|
9
|
Bini R. High‐resolution infrared study of the translational lattice modes in α‐N2single crystals. J Chem Phys 1996. [DOI: 10.1063/1.471187] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
10
|
Caldarone B, Taiti C, Bini R, Schettino V. Vibrational relaxation in disordered 1,4‐dihalobenzenes. J Chem Phys 1995. [DOI: 10.1063/1.469138] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|