LI-7 NMR RELAXATION IN A LITAO3 SINGLE-CRYSTAL

被引：0

作者：

YEOM, TH ^{[1
]}

HAN, KT ^{[1
]}

CHOH, SH ^{[1
]}

HONG, KS ^{[1
]}

机构：

[1] KOREA BASIC SCI CTR,SEOUL 136701,SOUTH KOREA

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 1995年 / 28卷 / 01期

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The relaxation rate (T1(-1)) of Li-7 in LiTaO3 has been investigated as a function of temperature in the range of 160 - 400 K with a pulse NMR spectrometer operating at 4.7 T. The rate was observed to increase linearly with increasing temperature. This relaxation behavior turns out to be different from that previously reported for a powder sample, where T1(-1)) was independent of temperature and was considered to be due to the impurity effect. This linear temperature dependence of the relaxation rate in a single crystal may well be accounted for by the direct process of scattering with a single phonon. Since our measurement was made with a single crystal sample with no appreciable impurities, the present result represents a more reliable feature of the intrinsic behavior of the relaxation process in LiTaO3.

引用

页码：113 / 115

页数：3

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