Quadratic temperature dependence of electron-phonon scattering in disordered V1-xPdx alloys

Biswas D; Meikap AK; Chattopadhyay SK; Chatterjee SK; Ghosh M

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Quadratic temperature dependence of electron-phonon scattering in disordered V1-xPdx alloys

机译：V1-xPdx无序合金中电子-声子散射的二次温度依赖性

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We report the results of a comprehensive study of weak localization and electron-electron interaction effects in disordered V1-xPdx alloys whose compositions are close to the (low T-c) A15 V3Pd compound. Magnetoresistivity and zero field resistivity have been measured within the temperature range 1.5 <= T <= 300 K. The low-temperature resistivity obeys a p(o)(5/2)T(1/2) law, which is explained by electron-electron interaction. We have determined the electron-phonon scattering time (tau(e-Ph)) for V1-xPdx alloys. Our results indicate an anomalous electron-phonon scattering rate tau(e-ph)(-1) obeying quadratic temperature dependence. This observation is interpreted by the existing theories of electron-phonon interactions. (c) 2004 Elsevier Ltd. All rights reserved.

机译：我们报告了对无序V1-xPdx合金（其成分接近（低T-c）A15 V3Pd化合物）的弱局部化和电子-电子相互作用效应进行全面研究的结果。在1.5 <= T <= 300 K的温度范围内测量了磁阻和零场电阻率。低温电阻率遵循ap（o）（5/2）T（1/2）律，其解释如下：电子相互作用。我们已经确定了V1-xPdx合金的电子-声子散射时间（tau（e-Ph））。我们的结果表明服从二次温度依赖性的异常电子-声子散射率tau（e-ph）（-1）。现有的电子-声子相互作用理论解释了这一发现。（c）2004 Elsevier Ltd.保留所有权利。

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来源
《Solid State Communications》 |2005年第3期|p. 223-228|共6页
作者
Biswas D; Meikap AK; Chattopadhyay SK; Chatterjee SK; Ghosh M;
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作者单位

Durgapur Deemed Univ, Natl Inst Technol, Durgapur 713209, W Bengal, India;

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正文语种 eng
中图分类固体物理学;
关键词
vanadium alloy; low temperature; magneto-resistivity; electron-phonon scattering; WEAK-LOCALIZATION; THIN-FILMS; PHASE-COHERENCE; 2 DIMENSIONS; METALS; SUPERCONDUCTORS; TRANSITION; CONDUCTORS; TIME; MAGNETORESISTANCE;

机译：钒合金;低温;磁阻;电子-声子散射;弱定位;薄膜;相干;二维;金属;超导体;过渡;导体;时间;磁阻;

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Quadratic temperature dependence of electron-phonon scattering in disordered V1-xPdx alloys

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