2012年8月
Multiferroic FeTe2O5Br: Alternating spin chains with frustrated interchain interactions
PHYSICAL REVIEW B
- 巻
- 86
- 号
- 5
- 開始ページ
- 054402
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1103/PhysRevB.86.054402
- 出版者・発行元
- AMER PHYSICAL SOC
A combination of density functional theory calculations, many-body model considerations, and magnetization and electron-spin-resonance measurements shows that the multiferroic FeTe2O5Br should be described as a system of alternating antiferromagnetic S = 5/2 chains with strong Fe-O-Te-O-Fe bridges weakly coupled by two-dimensional frustrated interactions, rather than the previously reported tetramer model. The peculiar temperature dependence of the incommensurate magnetic vector can be explained in terms of interchain exchange striction being responsible for the emergent net electric polarization.
- リンク情報
- ID情報
-
- DOI : 10.1103/PhysRevB.86.054402
- ISSN : 2469-9950
- eISSN : 2469-9969
- Web of Science ID : WOS:000306991600004