HIGH-TEMPERATURE CU-63, CU-65 NQR AND NMR-STUDY OF THE HIGH-TEMPERATURE SUPERCONDUCTOR LA2-XSRXCUO4 (0-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.15)

被引：12

作者：

IMAI, T ^{[1
]}

SLICHTER, CP ^{[1
]}

YOSHIMURA, K ^{[1
]}

KATOH, M ^{[1
]}

KOSUGE, K ^{[1
]}

机构：

[1] KYOTO UNIV,DEPT CHEM,KYOTO 606,JAPAN

来源：

PHYSICA B | 1994年 / 197卷 / 1-4期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0921-4526(94)90262-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The nature of strong correlation between carriers and its relation to the mechanism of superconductivity have been among the central issues in the study of high-temperature superconductors. Recently, we succeeded in observing Cu-63, Cu-65 NQR and NMR in the paramagnetic state of La-2CuO4, an antiferromagnetic (T(N) congruent-to 310 K) parent material of the high- T(c) superconductor La1.85Sr0.15CuO4 (T(c) congruent-to 38 K). This enabled us to investigate the dependence of low-frequency Cu spin fluctuations on hole doping for the entire concentration range between the undoped insulating phase (x = 0) and the maximum T(c) phase (x = 0.15) and to test scaling theories.

引用

页码：601 / 608

页数：8

共 31 条

[1] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY [J].