Incommensurate geometry of the elastic magnetic peaks in superconducting La1.88Sr0.12CuO4

被引：54

作者：

Kimura, H

Matsushita, H

Hirota, K

Endoh, Y

Yamada, K

Shirane, G

Lee, YS

Kastner, MA

Birgeneau, RJ

机构：

[1] Tohoku Univ, Dept Phys, Aoba Ku, Sendai, Miyagi 9808578, Japan

[2] Kyoto Univ, Chem Res Inst, Uji, Kyoto 6100011, Japan

[3] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[4] MIT, Dept Phys, Cambridge, MA 02139 USA

[5] MIT, Ctr Mat Sci & Engn, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.61.14366

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report magnetic neutron-scattering measurements of incommensurate magnetic order in a superconducting single crystal of La1.88Sr0.12CuO4. We find that the incommensurate wave vectors which describe the static magnetism do not lie along high-symmetry directions of the underlying CuO2 lattice. The positions of the elastic magnetic peaks are consistent with those found in excess-oxygen doped La2CuO4+y. This behavior differs from the precise magnetic order found in the low-temperature tetragonal LB1.6-xNd0.4SrxCuO4 material for which stripes of spin and charge have been observed. These observations have clear implications for any stripe model proposed to describe the static magnetism in orthorhombic La2CuO4-based superconductors.

引用

页码：14366 / 14369

页数：4

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