Muon spin relaxation study of the stripe phase order in La1.6-xNd0.4SrxCuO4 and related 214 cuprates

被引：119

作者：

Nachumi, B

Fudamoto, Y

Keren, A

Kojima, KM

Larkin, M

Luke, GM

Merrin, J

Tchernyshyov, O

Uemura, M

Ichikawa, N

Goto, M

Takagi, H

Uchida, S

Crawford, MK

McCarron, EM

MacLaughlin, DE

Heffner, RH

机构：

[1] Columbia Univ, Dept Phys, New York, NY 10027 USA

[2] Univ Tokyo, Dept Superconduct, Bunkyo Ku, Tokyo 113, Japan

[3] DuPont Co Inc, Wilmington, DE 19880 USA

[4] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA

[5] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.58.8760

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present zero-field muon spin relaxation (mu SR) measurements of La1.6-xNd0.4SrxCuO4 with x = 0.125,0.15,0.2; La1.475Nd0.4Ba0.125CuO4, La1.875Ba0.125CuO4, and La1.875Ba0.125-ySryCuO4 with y = 0.025,0.065. All of the samples with dopant concentrations x + y less than or equal to 0.15 show similar static magnetic order with coherent precession of the muon spins below T-N approximate to 30 K, with a T-->0 ordered Cu moment approximate to 0.3 mu(B). The samples with x=0.20 show no coherent precession but manifest two distinct relaxation regimes, typical of quasistatic magnetism. We then present transverse-field mu SR hysteresis measurements of the La1.45Nd0.4Sr0.15CuO4 and La1.4Nd0.4Sr0.2CuO4 systems that show a large superconducting response below approximately 7 K and 12 K, respectively. We argue that superconductivity and magnetic order coexist in the x=0.15 system.

引用

页码：8760 / 8772

页数：13

共 39 条

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