Interaction of frustrated magnetic sublattices in ErMnO3 -: art. no. 027203

被引：49

作者：

Fiebig, M ^{[1
]}

Degenhardt, C

Pisarev, RV

机构：

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

[2] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 02期

关键词：

D O I：

10.1003/PhysRevLett.88.027203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A spontaneous or field induced "hidden" phase transition with anti ferromagnetic-to-ferromagnetic reordering is disclosed in multiply frustrated hexagonal ErMnO3. It is revealed by Faraday rotation and second harmonic generation as sublattice-sensitive probes to the Er and Mn systems. The acquired phase diagram in the magnetic-field-temperature plane is shown to be a consequence of a broken geometric frustration between the Er and Mn lattices, giving way to anisotropic superexchange between the 3d and 4f ions.

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页数：4

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