Published November 1, 2005
| Version v1
Journal article
Dynamical structure factor of a nonlinear Klein-Gordon lattice
Creators
- 1. Service de Recherches de Metallurgie Physique, CEA-Saclay/DEN/DMN 91191-Gif-sur-Yvette Cedex (France)
Description
The quantum modes of a nonlinear Klein-Gordon lattice have been computed numerically [L. Proville, Phys. Rev. B 71, 104306 (2005)]. The on-site nonlinearity has been found to lead to phonon bound states. In the present paper, we compute numerically the dynamical structure factor so as to simulate the coherent scattering cross section at low temperature. The inelastic contribution is studied as a function of the on-site anharmonicity. Interestingly, our numerical method is not limited to the weak anharmonicity and permits one to study thoroughly the spectra of nonlinear phonons
Additional details
Identifiers
- DOI
- 10.1103/PhysRevB.72.184301;
- arXiv
- arXiv:0811.0238v1;
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter and Materials Physics
- Journal Volume
- 72
- Journal Issue
- 18
- Journal Page Range
- p. 184301-184301.10
- ISSN
- 1098-0121
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37032081
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BOUND STATE; COHERENT SCATTERING; CROSS SECTIONS; CRYSTAL STRUCTURE; KLEIN-GORDON EQUATION; NONLINEAR PROBLEMS; PHONONS; SOLIDS; STRUCTURE FACTORS; TEMPERATURE DEPENDENCE
- Descriptors DEC
- DIFFERENTIAL EQUATIONS; DIMENSIONLESS NUMBERS; EQUATIONS; FIELD EQUATIONS; PARTIAL DIFFERENTIAL EQUATIONS; QUASI PARTICLES; SCATTERING; WAVE EQUATIONS
Optional Information
- Notes
- (c) 2005 The American Physical Society