CU-63 AND O(17) NMR-STUDIES IN THE PLANE SITE IN YBA2CU3O7

被引：0
|
作者：
ISHIDA, K
KITAOKA, Y
ASAYAMA, K
机构：
[1] Department of Material Physics, Faculty of Engineering Science, Osaka University, Toyonaka, Osaka
来源：
PHYSICA B | 1994年 / 194卷
关键词：
D O I：
10.1016/0921-4526(94)91556-3
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The temperature dependence of the nuclear-spin-lattice relaxation rate. 1/T1 of both Cu and O sites in the CuO2 plane have been measured at high magnetic field of 11T. The ratio of (1/T1(Cu))/(1/T1(O))(R) above T(c) increases with decreasing temperature associated with the development of antiferromagnetic (AF) spin correlation and stays constantly below 100K. while R is rapidly reduced Just below T(c). being different from the previous results. The decrease of R reflects intimately the reduction in the AF contribution to the spin-fluctuation spectral weight relative to the q approximately (0.0) part due to the gap opening.
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收藏
页码：2113 / 2114
页数：2
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