Anharmonic Interaction in Aluminum. I
Phys. Rev. B 1, 4521 – Published 15 June, 1970
DOI: https://doi.org/10.1103/PhysRevB.1.4521
Abstract
Anharmonic linewidths and frequency shifts have been calculated as a function of temperature for Al, employing an effective interionic interaction derived from a model pseudopotential. Calculations have been carried out along principal symmetry directions at 80 and 300 K and comparison is made with the experimental data of Stedman and Nilsson and with the recent calculations of Högberg and Sandström. The structure of the one-phonon spectral function at 300 K for selected longitudinal phonons is examined in detail and discussed. The presence of a significant asymmetry in the one-phonon peak for the (0.8, 0, 0) longitudinal mode is pointed out.
Comments & Replies
Anharmonic Interactions in Aluminum. II
Phys. Rev. B 3, 3568 (1971)