New Superconducting and Magnetic Phases Emerge on the Magnetic Criticality in CeIn_3(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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We report the discovery of new superconducting and novel magnetic phases in CeIn_3 on the verge of antiferromagnetism (AFM) under pressure (P) through the In-nuclear quadrupole resonance (NQR) measurements. We have found a P-induced phase separation of AFM and paramagnetism (PM) without any trace of a quantum phase transition in CeIn_3. A new type of superconductivity (SC) was found, under P = 2.28-2.5 Gpa, to coexist with AFM. It is magnetically separated from PM where the heavy fermion SC takes place. We propose that the magnetic excitations such as spin-density fluctuations induced by the first-order magnetic phase transition might mediate attractive interaction to form Cooper pairs.
- 社団法人日本物理学会の論文
- 2004-07-15
著者
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Settai R.
Nara Medical University Center For Infectious Diseases
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KOBAYASHI Yoshio
Nishina Center for Accelerator Based Science
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SUEMATSU Hisayuki
Extreme Energy-Density Research Institute, Nagaoka University of Technology
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Kawasaki S.
Department Of Materials Engineering Science Graduate School Of Engineering Science Osaka University
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Mito T
National Institute Of Material Science
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Kitaoka Y.
Graduate School Of Science Osaka University
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Suematsu Hisayuki
Extreme Energy-density Research Institute Nagaoka University Of Technology
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Settai R
Research Institute For Scientific Measurements Tohoku University
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Kubo Y
Fundamental Research Laboratories Nec Corporation
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Kitaoka Y.
Department Of Materials Engineering Science Graduate School Of Engineering Science Osaka University
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Koike Yoshihiro
Advanced Science Research Center Japan Atomic Energy Research Institute
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KOTEGAWA H.
Department of Physics, Faculty of Science, Okayama University
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KAWASAKI Y.
Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka Universit
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MATSUMOTO T.
The JSC Surveillance Committee Japanese Society of Chemotherapy
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MITO T.
Department of Materials Science and Technology, Graduate School of Engineering Science, Osaka Univer
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ZHENG G.
Department of Materials Science and Technology, Graduate School of Engineering Science, Osaka Univer
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SHISHIDO H.
Department of Physics, Graduate School of Science, Osaka University
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ARAKI S.
Department of Physics, Graduate School of Science, Osaka University
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SETTAI R.
Advanced Science Research Center, Japan Atomic Energy Research Institute
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ONUKI Y.
Department of Physics, Graduate School of Science, Osaka University
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Kawasaki Y
Department Of Quantum Materials Science University Of Tokushima
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Kontani H
Department Of Physics Nagoya University
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Mito Takeshi
National Institute Of Material Science
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Kitaoka Y
Osaka Univ. Osaka Jpn
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Mito Takeshi
Department Of Physical Science Graduate School Of Engineering Science Osaka University
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Zheng G‐q
Department Of Materials Science And Technology Graduate School Of Engineering Science Osaka Universi
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Suematsu Hisayuki
Extreme Energy-density Res. Inst. Nagaoka Univ. Of Technol.
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Shishido H
Extreme Energy-density Research Institute Nagaoka University Of Technology
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Onuki Y
Graduate School Of Science Osaka Univ.
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Kishimoto Y
Department Of Physics Faculty Of Engineering Tokushima University
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Onuki Y.
Advanced Science Research Center Jaea:graduate School Of Science Osaka Univ.
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Kawasaki S
Department Of Materials Science And Technology Graduate School Of Engineering Science Osaka Universi
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Kitaoka Y.
Department Of Material Physics Osaka University Toyonaka-shi Osaka 560 Japan
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Shishido H.
Department of Physics and Electronics, Osaka Prefecture University:Institute for Nanofabrication Research, Osaka Prefecture University
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Araki S.
Department of Mining Engineering,Kyushu Institute of Technology
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Kotegawa H.
Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531
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Shishido H.
Department of Physics and Electronics, Osaka Pref. Univ.
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