Roles of bond alternation in magnetic phase diagram of RMnO3

Nobuo Furukawa*, Masahito Mochizuki

*この研究の対応する著者

研究成果査読

6 被引用数 (Scopus)

抄録

In order to investigate the nature of the antiferromagnetic structures in perovskite RMnO3, we study a Heisenberg J1-J2 model with bond alternation using analytical and numerical approaches. The magnetic phase diagram which includes incommensurate spiral states and commensurate collinear states is reproduced. We discuss that the magnetic structure with spin ↑↑↓↓configuration (E-type structure) and the ferroelectricity emerge cooperatively to stabilize this phase. Magnetoelastic couplings are crucial to understand the magnetic and electric phase diagram of RMnO3.

本文言語English
論文番号033708
ジャーナルjournal of the physical society of japan
79
3
DOI
出版ステータスPublished - 2010 3
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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