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

被引：6
|
作者：
Biswas, D
Meikap, AK [1 ]
Chattopadhyay, SK
Chatterjee, SK
Ghosh, M
机构：
[1] Durgapur Deemed Univ, Natl Inst Technol, Durgapur 713209, W Bengal, India
[2] Ramananda Coll Bishnupur, Dept Phys, Bankura 722122, W Bengal, India
来源：
SOLID STATE COMMUNICATIONS | 2005年 / 134卷 / 03期
关键词：
vanadium alloy; low temperature; magneto-resistivity; electron-phonon scattering;
D O I：
10.1016/j.ssc.2004.11.015
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
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(-1)(e-ph) obeying quadratic temperature dependence. This observation is interpreted by the existing theories of electron-phonon interactions. (c) 2004 Elsevier Ltd. All rights reserved.
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页码：223 / 228
页数：6
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