NUCLEAR-SPIN-LATTICE RELAXATION AND KNIGHT-SHIFT IN YBA2CU4O8

被引：82

作者：

MACHI, T ^{[1
]}

TOMENO, I ^{[1
]}

MIYATAKE, T ^{[1
]}

KOSHIZUKA, N ^{[1
]}

TANAKA, S ^{[1
]}

IMAI, T ^{[1
]}

YASUOKA, H ^{[1
]}

机构：

[1] UNIV TOKYO, INST SOLID STATE PHYS, MINATO KU, TOKYO 106, JAPAN

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1991年 / 173卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(91)90790-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The temperature dependences of the Cu-63 nuclear spin-lattice relaxation rate 1/T1 and Knight shift K in YBa2Cu4O8 have been measured by nuclear quadrupole resonance (NQR) and nuclear magnetic resonance (NMR) techniques. In the normal state, both the 1/T1 for the Cu(2) sites and the in-plane component of the Knight shift K2-perpendicular-to increase rapidly with temperature from T(c) up to about 250 K. Approximate T-linear temperature dependence of 1/T1 was observed in a wide temperature range between 250 and 680 K, that is in general accord with previous analyses.

引用

页码：32 / 36

页数：5

共 37 条

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