A Y-89 NMR-STUDY OF PR-DOPED AND ND-DOPED YBA2CU3O7

被引：31

作者：

HAN, ZP

DUPREE, R

PAUL, DM

HOWES, AP

CAVES, LWJ

机构：

[1] Department of Physics, University of Warwick, Coventry

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1991年 / 181卷 / 4-6期

关键词：

D O I：

10.1016/0921-4534(91)90123-G

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High resolution NMR data for the shift and spin-lattice relaxation time of the Y-89 resonance have been obtained for up to 70% Pr and up to 30% Nd substitution in Y1-xRxBa2Cu3O7. The shift data show that changes in spin susceptibility are small and there is no evidence in this data for hole filling in Pr-doped samples being the main cause of the quenching of T(c). The relaxation data demonstrate that the lifetime of the Pr moment must be very short (less-than-or-equal-to 10(-14) s for x < 0.4).

引用

页码：355 / 362

页数：8

共 41 条

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