Quadrupole effects and electron-phonon interaction in the non-equilibrium superconductors Al1-xSix

Authors
Gippius, AA Sluchanko, NE Glushkov, VV Demishev, SV Kondrin, MV Pronin, AA Brazhkin, VV Moshchalkov, VV Bruynseraede, Y
Citation
Aa. Gippius et al., Quadrupole effects and electron-phonon interaction in the non-equilibrium superconductors Al1-xSix, J PHYS-COND, 12(43), 2000, pp. 9167-9178
Citations number
26
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN journal
09538984 → ACNP
Volume
12
Issue
43
Year of publication
2000
Pages
9167 - 9178
Database
ISI
SICI code
0953-8984(20001030)12:43<9167:QEAEII>2.0.ZU;2-P
Abstract
Al-27 NMR (nuclear magnetic resonance) spectra and the spin-lattice relaxat ion were measured for the non-equilibrium Al-based superconductors Al1-xSx (x = 0, 0.02, 0.05, 0.06 and 0.08) in the temperature range 2-300 K. The NM R data confirm a substantial enhancement of the electron-phonon interaction in the vicinity of the FCC (face-centred cubic) lattice instability in the se model superconductors. The observed quadrupole effects can be interprete d in terms of a substantial distortion and disordering of the Al-based FCC lattice.