Magnetic structure of hexagonal manganites RMnO3 (R = Sc, Y, Ho, Er, Tm, Yb, Lu)

被引：19

作者：

Lottermoser, T ^{[1
]}

Fiebig, M

Fröhlich, D

Leute, S

Kohn, K

机构：

[1] Univ Dortmund, Inst Phys, D-44221 Dortmund, Germany

[2] Waseda Univ, Dept Phys, Shinjuku Ku, Tokyo 1698555, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷

关键词：

magnetic symmetry; frustration; second harmonic generation; rare earth-transition metal compounds; hexagonal;

D O I：

10.1016/S0304-8853(00)00707-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The frustrated magnetic structure of hexagonal RMnO3 (R = Sc, Y, Ho, Er, Tm, Yb, Lu) is analyzed by optical second-harmonic (SH) spectroscopy. It is found that in all compounds the Mn3+ spins form antiferromagnetic triangles in the xy easy plane with parallel coupling between adjacent layers at z = 0 and c/2 in the unit cell (alpha -type ordering). Some earlier conclusions on the magnetic structure of RMnO3 should be revised. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：1131 / 1133

页数：3

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