Nonequilibrium Phonon Distribution Thermalized with t^<-1/2> Long-Time Tail(General)

概要

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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.
社団法人日本物理学会の論文
2005-10-15