摘要
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.
原文 | English |
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文章編號 | 212202 |
期刊 | Physical Review B - Condensed Matter and Materials Physics |
卷 | 69 |
發行號 | 21 |
DOIs | |
出版狀態 | Published - 1 六月 2004 |