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

doi:10.1103/PhysRevB.85.064413

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 journal › Article › peer-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 language	English
Article number	064413
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevB.85.064413
Publication status	Published - 2012 Feb 22
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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Block magnetism coupled with local distortion in the iron-based spin-ladder compound BaFe ₂Se ₃ . / Nambu, Yusuke ; Ohgushi, Kenya; Suzuki, Shunpei; Du, Fei; Avdeev, Maxim; Uwatoko, Yoshiya; Munakata, Koji; Fukazawa, Hiroshi; Chi, Songxue; Ueda, Yutaka; Sato, Taku J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 85, No. 6, 064413, 22.02.2012.

Research output: Contribution to journal › Article › peer-review

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AU - Avdeev, Maxim

AU - Uwatoko, Yoshiya

AU - Munakata, Koji

AU - Fukazawa, Hiroshi

AU - Chi, Songxue

AU - Ueda, Yutaka

AU - Sato, Taku J.

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