Propagation of nonlinear acoustic waves in gallium
Propagation of nonlinear acoustic waves in gallium
复制标题
非线性声波在镓中的传播
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
V. Denisenko
中科院分区：
文献类型：
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作者：
V. D. Fil;A. Gaiduk;V. Denisenko
我们研究了超纯Ga中强声信号传播过程中的非线性现象，这些现象是由于金属中电子子系统的扰动引起的。虽然观测结果在许多方面与理论概念定性一致，但仍有一些影响缺乏足够的理论解释，特别是谐波振幅对磁场的振荡依赖性，其相对于H1/2是线性的，以及伴随着声噪声产生的声脉冲包络的明显非线性失真。
We study nonlinear phenomena which occur during strong sound signal propagation in superpure Ga and are due to the perturbation of the electron subsystem in the metal. Although the observations are in qualitative agreement with theoretical concepts in a number of aspects, there are effects which still lack adequate theoretical interpretation, in particular, an oscillatory dependence of the harmonic amplitudes on magnetic field which is linear with respect toH1/2, and appreciable nonlinear distortions of the sound pulse envelope accompanied by the acoustic noise generation.