Low Temperature Structural Instability of Tetragonal Spinel Mn
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概要
- 論文の詳細を見る
Tetragonal ferrimagnetic spinel Mn<inf>3</inf>O<inf>4</inf>shows complex magnetic phase transitions due to competing anti ferromagnetic interactions involving Mn<sup>2+/3+</sup>ions with difference valences. Using magnetization and neutron diffraction measurements, we propose that its tetragonal lattice possesses an instability towards orthorhombic distortion in zero field well below T_{\text{N}}. The direction of the observed instability suggests that the anomaly is related to lifting of the persistent geometrical frustration via spin--lattice coupling.
- 2013-03-15
著者
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Suzuki Takehito
Department Of Electrical And Electronic Engineering Ibaraki University
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Chung Jae-ho
Department Of Physics Korea University
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KATSUFUJI Takuro
Department of Advanced Materials Science, University of Tokyo
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Lee Kee
Department Of Chemistry Seoul National University
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Song Young-Sang
Department of Physics, Korea University, Seoul 136-713, Republic of Korea
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Chung Jae-Ho
Department of Physics, Korea University, Seoul 136-713, Republic of Korea
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