205Tl NMR study of vortex state of Tl2Ba2CuO6+δ

被引：0

作者：

Itoh, Y ^{[1
]}

Michioka, C

Yoshimura, K

Hayashi, A

Ueda, Y

机构：

[1] Kyoto Univ, Dept Chem, Grad Sch Sci, Kyoto 6068502, Japan

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

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2005年 / 66卷 / 8-9期

关键词：

superconductors; superconductivity;

D O I：

10.1016/j.jpcs.2005.05.013

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a (205)T1 NMR study of vortex state for an oriented polycrystalline sample of an overdoped high-T-c superconductor T1(2)Ba(2)CuO(6+) (delta)(T-c similar to 85 K) with magnetic field 2 T along the c-axis. An obvious Redfield pattern of the (205)T1 NMR spectrum for our sample at T= 5 K indicates the vortex lattice state without local antiferromagnetic order at vortex cores. We emphasize that nonexponential nuclear spin-lattice relaxation curves indicate an imperfect vortex lattice or Bragg glass phase. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：1376 / 1379

页数：4

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