Synthesis of Double-Layer Perovskite Fluoride K_3Cu_2F_7 with Spin Gap and Orbital Order(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
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We synthesized a single-phase polycrystalline sample of a double-layer perovskite fluoride K_3Cu_2F_7. This compound is the new member of the potassium copper fluoride family, which has an antiferrodistortive orbital order (AFDOO). Magnetic susceptibility measurements revealed that K_3Cu_2F_7 is a rare experimental realization of antiferromagnetically isolated spin dimers on a simple double-square lattice with no frustration, and that AFDOO causes ferromagnetic interactions in respective layers. The coexistence of spin gap and AFDOO is an exotic phenomenon both in quantum spin systems and strongly correlated electron systems.
- 社団法人日本物理学会の論文
- 2007-04-15
著者
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MANAKA Hirotaka
Department of Physics, Faculty of Science, Chiba University
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Watanabe Yusuke
Department of Materials Engineering, The University of Tokyo
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Miyashita Yusuke
Department of Cardiology, Shonan Kamakura General Hospital
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Watanabe Yusuke
Department Of Cardiology Sakakibara Heart Institute
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MASUDA Takatsugu
International Graduate School of Arts and Sciences, Yokohama City University
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Manaka Hirotaka
Department Of Nano-structure And Advanced Materials. Graduate School Of Science And Engineering Kago
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Manaka Hirotaka
Department Of Nano-structure And Advanced Materials Graduate School Of Science And Engineering Kagos
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Manaka Hirotaka
Department Of Cardiology The Heart Institute Of Japan Tokyo Women's Medical University
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Masuda Takatsugu
International Graduate School Of Arts And Sciences Yokohama City University
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Watanabe Yusuke
Department Of Nano-structure And Advanced Materials. Graduate School Of Science And Engineering Kago
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Miyashita Yusuke
Department Of Nano-structure And Advanced Materials. Graduate School Of Science And Engineering Kago
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Masuda Takatsugu
Yokohama City Univ. Yokohama
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MIYASHITA Yusuke
Department of Advanced PAD Therapeutics, Shinshu University
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