Strong Correlation Between Field-induced Magnetism and Superconductivity in Pr_<0.89>LaCe_<0.11>CuO_4(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
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We report the local magnetic response of an electron-doped cuprate superconductor, Pr_<0.89>LaCe_<0.11>CuO_<4-y> (T_c ≃ 26 K), studied by muon spin rotation (μSR) over a field range from 200 Oe to 50kOe. In the paramagnetic state, the muon Knight shift along the crystal c-axis (K^Z_μ) is proportional to the in-plane susceptibility X_<ab>. More surprisingly, K^Z_μ is strongly enhanced by the occurrence of superconductivity (below 〜40kOe), changing its sign from positive to negative around 〜1 kOe with increasing field. This finding can be understood by considering the weak polarization of Pr ions due to the superexchange interaction with the antiferromagnetic Cu sublattice, which coexists with superconductivity.
- 社団法人日本物理学会の論文
- 2004-11-15
著者
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KOJIMA Kenji
Department of Superconductivity, The University of Tokyo
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Kimura S
Department Of Physics Faculty Of Science Kobe University
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YAMADA Kazuyoshi
Institute for Materials Research, Tohoku University
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山田 和芳
東北大wpi材料機構
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FUJITA Masaki
Institute for Material Research, Tohoku University
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HIGEMOTO Wataru
Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK)
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Yamada Kotaro
Department Of Engineering Hiroshima University
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Katano Susumu
Neutron Scattering Group Advanced Science Research Center Japan Atomic Energy Research Institute
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Kunii S
Graduate School Of Science And Technology Niigata University
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Kunii S
Tohoku Univ. Sendai Jpn
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Sato Ken
Department Of Physics Faculty Of Science Tohoku University
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Kunii Satoru
Faculty Of Engineering Tohoku Gakuin University
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HIGEMOTO Wataru
Advanced Science Research Center, Japan Atomic Energy Agency
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山田 耕作
Faculty Of Science And Engineering Ritsumeikan University
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藤田 元基
東北大金研
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Fujita Masaki
Institute For Material Research Tohoku University
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Kadono Ryosuke
Kek Ibaraki
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Kadono Ryosuke
Institue Of Materials Structure Science Kek
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Yamada K
Department Of Physics Tohoku University:(present)institute For Chemical Research Kyoto University
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Yamada Kazuyoshi
Nagano Chushin Agricultural Experiment Station:(present Address)nagano Vegetable And Ornamental Crop
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Higemoto W
Advanced Science Research Center Japan Atomic Energy Agency
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Higemoto Wataru
Institute Of Materials Structure Science High Energy Accelerator Research Organization (kek)
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Higemoto Wataru
Meson Science Laboratory Institute Of Materials Structure Science High Energy Accelerator Research O
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KODA Akihiro
Institute of Materials Structure Science, High Energy Accelerator Research Organization(KEK)
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Koda A
Department Of Materials Structure Science School Of High Energy Accelerator Science The Graduate Uni
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Koda Akihiro
Kyokugen Osaka University:graduate School Of Engineering Science Osaka University
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Koda Akihiro
Institute Of Materials Structure Science High Energy Accelerator Research Organization (kek):departm
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Koda Akihiro
Meson Science Laboratory Institute Of Materials Structure Science High Energy Accelerator Research O
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OHISHI Kazuki
Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK)
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Yamada K
Kyoto Univ. Kyoto
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Kuroiwa S
Department Of Physics Aoyama Gakuin University
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Yamada Kazuyoshi
Institute For Materials Research Tohoku University
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Yamada Kazuyoshi
Laboratory Of Nuclear Science Tohoku University
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Yamada Kosaku
Research Institute For Fundamental Physics Kyoto University
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Kojima Kenji
Department Of Physics Graduate School Of Science University Of Tokyo
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Kadono R
Department Of Materials Structure Science School Of High Energy Accelerator Science The Graduate Uni
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Kadono Ryosuke
Department Of Materials Structure Science The Graduate University For Advanced Studies
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KUROSHIMA Shin-ichi
Institute for Chemical Research, Kyoto University
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Yamada K
Department Of Science Kyoto University
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Yosida K
Sci. Univ. Tokyo Noda
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Ohishi K
Advanced Science Research Center Japan Atomic Energy Agency
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Higemoto Wataru
Advanced Science Research Center Japan Atomic Energy Agency
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Kuroshima Shin-ichi
Institute For Chemical Research Kyoto University
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Kojima Kenji
Department Of Electrical Engineering Faculty Of Engineering Kanagawa University
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Koda Akihiro
High Energy Accelerator Res. Organization
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Yamada Kazuyoshi
Institute For Chemical Research Kyoto University
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Higemoto Wataru
Institute Of Materials Structure Science High Energy Accelerator Research Organization : (present Ad
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Koda Akihiro
Institute Of Materials Structure Science High Energy Accelerator Research Organization (kek):departm
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Ohishi Kazuki
Institute Of Materials Structure Science High Energy Accelerator Research Organization
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Ohishi Kazuki
Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK):(Present Office)Advanced Science Research Center, Japan Atomic Energy Agency
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YAMADA Kenji
Department of Engineering Science, Junior College Funabashi Campus, Nihon University
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YAMADA Kosaku
Institute for Solid State Physics, University:College of Engineering, Shizuoka University
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Kojima Kenji
Department of Chemistry, Faculty of Sciences, Gakushuin University
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