Is the frozen phonon model adequate to describe inelastic phonon scattering?

Ultramicroscopy. 2009 May;109(6):677-82. doi: 10.1016/j.ultramic.2009.01.001. Epub 2009 Jan 10.

Abstract

It is proven in a rigorous way that the frozen phonon model that is currently used to account for phonon scattering in multislice calculations, is equivalent to a full quantum-mechanical treatment of the inelastic phonon scattering process.