CU-63 NMR-STUDY IN HIGH-T-C SUPERCONDUCTOR TLSR2(LU1-XCAX)CU2OY

被引：2

作者：

MAGISHI, K ^{[1
]}

ZHENG, GQ ^{[1
]}

KITAOKA, Y ^{[1
]}

ASAYAMA, K ^{[1
]}

KONDO, T ^{[1
]}

SHIMAKAWA, Y ^{[1
]}

MANAKO, T ^{[1
]}

KUBO, Y ^{[1
]}

机构：

[1] NEC CORP LTD,FUNDAMENTAL RES LABS,KAWASAKI,KANAGAWA 213,JAPAN

来源：

PHYSICA C | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)92041-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Cu-63 NMR measurements have been carried out in heavily-doped TlSr2CaCu2O7-delta with T-c=70K, 52K and OK, respectively, and in lightly-doped TlSr2(Lu0.7Ca0.3)Cu2Oy with T-c=40K under a magnetic field of 11T. From a systematic measurement of the nuclear-spin lattice relaxation rate, (63)(1/T-1), the antiferromagnetic (AF) spin correlation is suppressed with increasing hole content, i.e. with decreasing T-c as in the case of Tl2Ba2CuO6+y. From the Knight shift measurement, it has been found that the T-independent behavior of the spin susceptibility above T-c in heavily-doped system changes into a T-decreasing one in the lightly-doped TlSr2(Lu0.7Ca0.3)Cu2Oy, which is the same as in YBa2Cu3O6.63.

引用

页码：1631 / 1632

页数：2

共 3 条

[1] SPIN DYNAMICS AT OXYGEN SITES IN YBA2CU3O7
HAMMEL, PC
TAKIGAWA, M
HEFFNER, RH
FISK, Z
OTT, KC
[J]. PHYSICAL REVIEW LETTERS, 1989, 63 (18) : 1992 - 1995
[2] SPIN DYNAMICS IN HEAVILY-DOPED HIGH-TC SUPERCONDUCTORS TL2BA2CUO6+Y WITH A SINGLE CUO2 LAYER STUDIED BY CU-63 AND TL-205 NMR
KITAOKA, Y
FUJIWARA, K
ISHIDA, K
ASAYAMA, K
SHIMAKAWA, Y
MANAKO, T
KUBO, Y
[J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1991, 179 (1-3): : 107 - 118
[3] CU AND O NMR-STUDIES OF THE MAGNETIC-PROPERTIES OF YBA2CU3O6.63(TC=62K)
TAKIGAWA, M
REYES, AP
HAMMEL, PC
THOMPSON, JD
HEFFNER, RH
FISK, Z
OTT, KC
[J]. PHYSICAL REVIEW B, 1991, 43 (01): : 247 - 257

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