RELEVANCE OF ELECTRON-PHONON COUPLING IN HIGH-T(C) SUPERCONDUCTORS

Authors
RIETSCHEL H
Citation
H. Rietschel, RELEVANCE OF ELECTRON-PHONON COUPLING IN HIGH-T(C) SUPERCONDUCTORS, Journal of low temperature physics, 95(1-2), 1994, pp. 293-298
Citations number
12
Categorie Soggetti
Physics, Applied
Journal title
Journal of low temperature physics → ACNP
ISSN journal
00222291
Volume
95
Issue
1-2
Year of publication
1994
Pages
293 - 298
Database
ISI
SICI code
0022-2291(1994)95:1-2<293:ROECIH>2.0.ZU;2-N
Abstract
The experimental observation of phonon renormalization in high-T(c) su perconductors gives clear evidence for the action of electron-phonon c oupling. But in spite of the estimated coupling strength lambda approx imately 1 - 3, these effects do not allow for a unique identification of the coupling mechanism. This situation is contrasted with that for the low-T(c) superconductors where tunneling spectroscopy provides a h ard proof for electron pairing via phonons.