Anomalous temperature and disorder dependences of electron-phonon scattering rate in impure V1-xAlx alloys

A. K. Meikap*, Y. Y. Chen, Juhn-Jong Lin

*Corresponding author for this work

Research output: Contribution to journalArticle

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Abstract

Using weak-localization studies, we have measured the electron-phonon scattering time τep in a series of V1-xAlx alloys having the characteristic of ql ≪ 1, where q is the wave number of the thermal phonons and l is the electron elastic mean free path. We find an anomalous electron-phonon scattering rate obeying a quadratic temperature dependence as well as a linear mean-free-path dependence, i.e., τep-1∼T2l. This result cannot be explained in terms of existing theories for the electron-phonon interaction in impure conductors.

Original languageEnglish
Article number212202
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number21
DOIs
StatePublished - 1 Jun 2004

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