Block magnetism coupled with local distortion in the iron-based spin-ladder compound BaFe 2Se 3

Yusuke Nambu, Kenya Ohgushi, Shunpei Suzuki, Fei Du, Maxim Avdeev, Yoshiya Uwatoko, Koji Munakata, Hiroshi Fukazawa, Songxue Chi, Yutaka Ueda, Taku J. Sato

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)

Abstract

Magnetism in the insulating BaFe 2Se 3 was examined through susceptibility, specific heat, resistivity, and neutron diffraction measurements. After formation of a short-range magnetic correlation, a long-range ordering was observed below T N∼255 K. The transition is obscured by bulk properties. Magnetic moments (a) are arranged to form a Fe 4 ferromagnetic unit, and each Fe 4 stacks antiferromagnetically. This block magnetism is of the third type among magnetic structures of ferrous materials. The magnetic ordering drives unusually large distortion via magnetoelastic coupling.

Original languageEnglish
Article number064413
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume85
Issue number6
DOIs
Publication statusPublished - 2012 Feb 22
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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