Quasi-elastic incommensurate peaks in La2-xSrxCU1-yZnyO4-δ

被引：44

作者：

Hirota, K ^{[1
]}

Yamada, K

Tanaka, I

Kojima, H

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 98077, Japan

[2] Yamanashi Univ, Inst Inorgan Synth, Kofu, Yamanashi 400, Japan

来源：

PHYSICA B | 1997年 / 241卷

关键词：

high-T-c cuprate; incommensurate magnetic peaks; antiferromagnetic spin fluctuations;

D O I：

10.1016/S0921-4526(97)00727-8

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Sharp quasi-elastic peaks (kappa = 0.014 Angstrom(-1), Gamma = 0.22 meV), indicating long-range antiferromagnetic slow fluctuations, were observed at (pi,pi) + epsilon(pi,0) in La1.86Sr0.14Cu0.988Zn0.012O4-delta in superconducting (delta = 0, T-c = 19 K) and non-superconducting (delta = 0.0040) conditions. The quasi-elastic components start appearing around T, and increase with lowering temperature, while the low-energy inelastic peaks with the same epsilon show a broad intensity maximum around the same temperature. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：817 / 819

页数：3

共 5 条

[1] INCOMMENSURATE MAGNETIC FLUCTUATIONS IN LA2-XSRXCUO4 [J].