J.R. Thompson, Yang Ren Sun, et al.
Physica A: Statistical Mechanics and its Applications
The properties of interacting phonons are determined in a unified fashion through a study of the displacement correlation function. Expressions for the attenuation are obtained at all frequencies and for different anharmonic mechanisms in insulators and helium. Second sound is shown to be an additional phonon mode at long wavelength. © 1965.
J.R. Thompson, Yang Ren Sun, et al.
Physica A: Statistical Mechanics and its Applications
I. Morgenstern, K.A. Müller, et al.
Physica B: Physics of Condensed Matter
R.M. Macfarlane, R.L. Cone
Physical Review B - CMMP
Ronald Troutman
Synthetic Metals