Determination of the Electron-phonon Coupling Constant from Optical Measurements

Determination of the Electron-phonon Coupling Constant from Optical Measurements
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通过光学测量确定电子-声子耦合常数

DOI：
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发表时间：
1971
期刊：
影响因子：
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通讯作者：
G. P. Motulevich
G. P. Motulevich
中科院分区：
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文献类型：
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作者：
E. Maksimov;G. P. Motulevich

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被引文献

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德拜温度以上的光学测量用于确定电子-声子耦合常数，其出现在Ferro i表面上的重整化电子质量的表达式和临界超导转变温度的方程中。该确定基于当整个声子谱被激发时，由于德拜温度以上的电子-声子相互作用，的电子弛豫时间和之间的简单关系。比较了Pb、Sn、In、Al、Zn、Nb、V、Nb_3Sn和V_3Ga的通过光学测量和通过其它方法获得的值。
Optical measurements above the Debye temperature are used to determine the electron-phonon coupling constant ;>, which appears in the expression for the renormalized electron mass on the Ferro i surface and in the equation for the critical superconducting transition temperature. The determination is based on a simple relation between ;>, and the electron relaxation time, due to electron-phonon interaction above the Debye temperature, when the entire phonon spectrum is excited. The values of ;>,obtained by optical measurements and by other methods are compared for Pb, Sn, In, Al, Zn, Nb, V, Nb3Sn, and V3Ga.