Electron-Phonon Interactions in the Transition Metals

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概要

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• A generalized version of the Bardeen-Pines approach is applied to the problem of electron-phonon coupling in a two-band metal in the long-wavelength region, particular attention being paid to the question of how far observation of the phonon spectrum will give information on the low-lying collective excitations of the electron system predicted elsewhere. It is shown that(in contrast to the situation in a one-band metal)subsidiary poles due to electronic resonances should in principle appear in the phonon spectrum, but their direct observation is estimated to be experimentally unfeasible. On the other hand the existence of these resonances should lead to comparatively large effects on the ultrasound velocity;in particular, interesting effects of an observable order of magnitude are predicted in the ultrasound dispersipn curve in a clean two-band superconductor at low temperatures.

• 理論物理学刊行会の論文
• 1966-11-25

著者

• Leggett A.

  Magdalen College Oxford : Department Of Physics Kyoto University

関連論文

• Persistence of Zero Sound in the Possible Superfluid Phase of He^3
• Electron-Phonon Interactions in the Transition Metals
• Number-Phase Fluctuations in Two-Band Superconductors

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