Pressure--Temperature--Magnetic Field Phase Diagram of Ferromagnetic Kondo Lattice CeRuPO
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概要
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We report the temperature-pressure-magnetic field phase diagram made from electrical resistivity measurements for the ferromagnetic (FM) Kondo lattice CeRuPO. The ground state at zero field changes from the FM state to another state, which is suggested to be an antiferromagnetic (AFM) state, above {\sim}0.7 GPa, and the magnetically ordered state is completely suppressed at {\sim}2.8 GPa. In addition to the collapse of the AFM state under pressure and a magnetic field, a metamagnetic (MM) transition from a paramagnetic state to a polarized paramagnetic state appears. CeRuPO will give us a rich playground for understanding the mechanism of the MM transition under comparable FM and AFM correlations in the Kondo lattice.
- 2013-12-15
著者
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KOTEGAWA Hisashi
Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka Universit
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Tou Hideki
Department Of Material Physics Faculty Of Engineering Science Osaka University
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Matsuoka Eiichi
Department Of Physics Graduate School Of Science Tohoku University
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SUGAWARA Hitoshi
Department of Mathematical and Natural Sciences, Faculty of Integrated Arts and Sciences, The University of Tokushima
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Kitagawa Shunsaku
Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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Toyama Toshihiro
Department of Physics, Kobe University, Kobe 657-8501, Japan
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Yamauchi Ryota
Department of Physics, Kobe University, Kobe 657-8501, Japan
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Kitagawa Shunsaku
Department of Physics, Kobe University, Kobe 657-8501, Japan
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Sugawara Hitoshi
Department of General Internal Medicine, Omiya Medical Center, Jichi Medical University
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Matsuoka Eiichi
Department of Physics, Kobe University, Kobe 657-8501, Japan
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