Nuclear spin‐lattice relaxation in some insulating glasses
作者:
J. Szeftel,
H. Alloul,
期刊:
AIP Conference Proceedings
(AIP Available online 1976)
卷期:
Volume 31,
issue 1
页码: 74-78
ISSN:0094-243X
年代: 1976
DOI:10.1063/1.30793
出版商: AIP
数据来源: AIP
摘要:
The nuclear spin‐lattice relaxation timeT1of11Band23Na have been measured in the following insulating glasses: B2O3, Na2B4O7, (Na2O)0.3(SiO2)0.7. In all cases relaxation has been shown previously to be dominated by a strong quadrupolar mechanism.T1is observed to decrease between 1.2K and 273K and to be nearly field independent up to 55kG. In view of the available experimental results, the various models which have been proposed to account for NMR relaxation in glasses are shown to be unsatisfactory.
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