LOW-TEMPERATURE NUCLEAR-MAGNETIC-RESONANCE STUDIES OF AN AL70RE8.6PD21.4 ICOSAHEDRAL QUASI-CRYSTAL

Authors
GAVILANO JL AMBROSINI B VONLANTHEN P CHERNIKOV MA OTT HR
Citation
Jl. Gavilano et al., LOW-TEMPERATURE NUCLEAR-MAGNETIC-RESONANCE STUDIES OF AN AL70RE8.6PD21.4 ICOSAHEDRAL QUASI-CRYSTAL, Physical review letters, 79(16), 1997, pp. 3058-3061
Citations number
26
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
79
Issue
16
Year of publication
1997
Pages
3058 - 3061
Database
ISI
SICI code
0031-9007(1997)79:16<3058:LNSOAA>2.0.ZU;2-O
Abstract
We report the results of a Al-27 nuclear magnetic resonance study of i cosahedral quasicrystalline Al70Re8.6Pd21.4 at temperatures between 0. 04 and 300 K and in magnetic fields between 1.5 and 7 T. At very low t emperatures we have found that the temperature dependence of the spin- lattice relaxation rate T-1(-1)(T) shows new and unexpected features w hich we associate with a gradual real-space localization of the itiner ant charge carriers. Above 20 K, T-1(-1)(T) contains both a linear- an d a cubic-in-T term, previously observed for other quasicrystals.