NMR studies of the new superconductors AOs2O6 (A = K, Rb)

被引：14

作者：

Arai, K ^{[1
]}

Kikuchi, J ^{[1
]}

Kodama, K ^{[1
]}

Takigawa, M ^{[1
]}

Yonezawa, S ^{[1
]}

Muraoka, Y ^{[1
]}

Hiroi, Z ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2005年 / 359卷

关键词：

the new superconductors AOs(2)O(6) (A = K; Rb; Cs); K-39-NMR; Rb-87-NMR;

D O I：

10.1016/j.physb.2005.01.123

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report results of nuclear magnetic resonance (NMR) experiments on K-39 and Rb-87 nuclei in the new superconductors AOs(2)O(6) (A = K or Rb). These compounds crystallize in the beta-pyrochlore structure. In the superconducting phase, we found a small peak in 1/(T1T) for 87 Rb slightly below the superconducting transition temperature (T-c) but no peak for K-39. In the normal state of KOs2O6, we observed a clear pseudogap behavior similar to what has been observed in high T-c cuprates. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：488 / 490

页数：3

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