CORRESPONDENCE BETWEEN NUCLEAR-SPIN RELAXATION AND ELECTRICAL-CONDUCTIVITY IN GLASSES AT LOW-TEMPERATURES

Authors
KANERT O KUCHLER R DIECKHOFER J LU X JAIN H
Citation
O. Kanert et al., CORRESPONDENCE BETWEEN NUCLEAR-SPIN RELAXATION AND ELECTRICAL-CONDUCTIVITY IN GLASSES AT LOW-TEMPERATURES, Physical review. B, Condensed matter, 49(1), 1994, pp. 629-632
Citations number
16
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
49
Issue
1
Year of publication
1994
Pages
629 - 632
Database
ISI
SICI code
0163-1829(1994)49:1<629:CBNRAE>2.0.ZU;2-O
Abstract
Nuclear-spin relaxation (NSR) and electrical conductivity observed in various inorganic oxide glasses at low temperatures are found to be re lated by the fluctuation-dissipation theorem, indicating a common phys ical origin of the relaxation mechanism due to fluctuating charges. Ho wever, in heavy-metal fluoride glasses NSR is shown to detect addition al fluctuations which are not observed by counductivity experiments. T he underlying relaxation process is caused by magnetic fluctuations wi thout any accompanying charge motions.