Nonequilibrium Phonon Distribution Thermalized with t-1/2 Long-Time Tail

Autor: Masahiro Agu, Hideo Akabane
Rok vydání: 2005
Předmět:
Zdroj: Journal of the Physical Society of Japan. 74:2708-2711
ISSN: 1347-4073
0031-9015
Popis: The nonequilibrium phonon number dynamics of three-phonon processes are studied for 1/ f current fluctuation in solid-state materials. It is shown that the excitation of a nonequilibrium acoustic phonon diffuses to thermalize in a wave-number space with a t -1/2 long-time tail when the excited phonon interacts with a thermal phonon of nearly zero wave number.
Databáze: OpenAIRE