ELECTRON-DIFFUSION IN METALS STUDIED BY PICOSECOND ULTRASONICS

被引：311

作者：

TAS, G

MARIS, HJ

机构：

[1] Department of Physics, Brown University, Providence

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.49.15046

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have studied the ultrasonic pulses that are generated when a picosecond light pulse is absorbed in a metallic film. The pulse shape is influenced by the distance that the hot electrons diffuse before losing their energy to the lattice. We show that this method can be used to test theories of the electron-phonon and electron-electron scattering rates. The results are in excellent agreement with a calculation in which the nonthermal character of the electron distribution is taken into account.

引用

页码：15046 / 15054

页数：9

共 33 条

[1]

Akhmanov S. A., 1992, Soviet Physics - Uspekhi, V35, P153, DOI 10.1070/PU1992v035n03ABEH002221

[2] THEORY OF THERMAL RELAXATION OF ELECTRONS IN METALS [J].