Nonperturbative anharmonic phenomena in crystal lattice dynamics
M. I. Katsnelson, A. V. Trefilov
TL;DR
This paper investigates slow energy transfer dynamics between phonon modes in crystals under resonance, revealing potential new effects observable in neutron scattering spectra.
Contribution
It introduces a nonperturbative approach to understanding anharmonic phenomena in crystal lattice dynamics, highlighting resonance effects.
Findings
Identification of slow energy transfer phenomena
Prediction of new spectral effects in neutron scattering
Insights into anharmonic interactions in crystals
Abstract
Slow dynamics of energy transfer between different phonon modes under the resonance conditions is considered. It may result in new effects in the inelastic and quasielastic neutron scattering spectra.
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