Neutron scattering studies on magnetic structure of the double-layered manganite La2-2xSr1+2xMn2O7 (0.30 ≤ x ≤ 0.50)

被引：67

作者：

Kubota, M

Fujioka, H

Ohoyama, K

Hirota, K

Moritomo, Y

Yoshizawa, H

Endoh, Y

机构：

[1] Univ Tokyo, Neutron Scattering Lab, Tokai, Ibaraki 3191106, Japan

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

[3] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

[4] Nagoya Univ, Ctr Integrated Res Sci & Engn, Nagoya, Aichi 46401, Japan

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1999年 / 60卷 / 8-9期

关键词：

magnetic materials; crystal growth; neutron scattering; magnetic structure;

D O I：

10.1016/S0022-3697(99)00068-2

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Systematic powder diffraction studies have been carried out to establish the magnetic phase diagram of La2-2xSr1+2xMn2O7 (LSMO327) in a wide hole concentration range (0.30 less than or equal to x less than or equal to 0.50), using the HERMES diffractometer. LSM0327 exhibits a planar ferromagnetic structure for 0.32 less than or equal to x less than or equal to 0.38 at low temperatures. A finite canting angle between planar magnetic moments on neighboring planes starts appearing around x similar to 0.40 and reaches 180 degrees (A-type antiferromagnet) at x = 0.48. At x = 0.30, on the contrary, the magnetic moments are aligned parallel to the c-axis. (C) 1999 Elsevier Science Ltd. All rights reserved.

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页码：1161 / 1164

页数：4

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