A A Gippius et al 2000 J. Phys.: Condens. Matter 12 9167 doi:10.1088/0953-8984/12/43/307
A A Gippius1, N E Sluchanko2,5, V V Glushkov2, S V Demishev2, M V Kondrin2, A A Pronin2, V V Brazhkin3, V V Moshchalkov4 and Y Bruynseraede4
Show affiliations27Al NMR (nuclear magnetic resonance) spectra and the spin-lattice relaxation were measured for the non-equilibrium Al-based superconductors Al1-xSix (x = 0, 0.02, 0.05, 0.06 and 0.08) in the temperature range 2-300 K. The NMR data confirm a substantial enhancement of the electron-phonon interaction in the vicinity of the FCC (face-centred cubic) lattice instability in these model superconductors. The observed quadrupole effects can be interpreted in terms of a substantial distortion and disordering of the Al-based FCC lattice.
74.70.Ad Metals; alloys and binary compounds (including A15, MgB2, etc.)
74.62.Bf Effects of material synthesis, crystal structure, and chemical composition
74.40.+k Fluctuations (noise, chaos, nonequilibrium superconductivity, localization, etc.)
Issue 43 (30 October 2000)
Received 22 May 2000, in final form 18 September 2000
A A Gippius et al 2000 J. Phys.: Condens. Matter 12 9167
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