Temperature and Magnetic Field Dependence of the Coexistent Phases in La_<1-x>Ca_xMnO_<3+δ>(x=0.47,0.49)
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概要
- 論文の詳細を見る
X-ray diffraction measurements under high and low temperature, and magnetic field have been performed for the doped La_<1-x>Ca_xMnO_<3+δ> polycrystals to clarify the coexistent phases and their structures around the composition of x 〜 0.5. By measurements at high temperature, the transition from a Pnma to an imma space group symmetry phase has been firstly observed in this system at the temperature between 500℃ and 600℃. At low temperature, the importance of the measurement of (131) reflection is noticed and the phase fraction of two similar Pnma phases with ferromagnetic and anti-ferromagnetic states is determined. It is found that the application of the magnetic field by 5 T and the slight change of the composition x by 0.02 remarkably affect this phase fraction.
- 社団法人日本物理学会の論文
- 2003-04-15
著者
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Watanabe K
Institute For Materials Research Tohoku University
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Awaji S
Institute For Materials Research Tohoku University
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AWAJI Satoshi
Institute for Materials Research, Tohoku University
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Watanabe K
Tohoku Univ. Sendai Jpn
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Fujimori H
Tohoku Univ. Sendai
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Awaji Satoshi
Tohoku Univ. Sendai Jpn
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WATAZAWA Keiichi
Sumitomo Heavy Industries Ltd.
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WATANABE Yousuke
Institute for Materials Research,Tohoku University
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FUJISHIRO Hiroyuki
Faculty of Engineering, Iwate University
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IKEBE Manabu
Faculty of Engineering, Iwate University
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Watanabe Y
Department Of Physics Kwansei-gakuin University
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Watanabe K
National Institute For Fusion Science
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Watanabe Kazuto
Safety Assessment Department Chugai Pharmaceutical Co. Ltd.
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Watanabe Yousuke
Institute For Materials Research Tohoku University
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Fujishiro H
Faculty Of Engineering Iwate University
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Ikebe M
Faculty Of Engineering Iwate University
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Ikebe Manabu
Faculty Of Engineering Iwate University
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Watanabe Y
Institute For Materials Research Tohoku University
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Fujimori H
Res. Inst. Electric And Magnetic Materials Sendai Jpn
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Fujishiro Hiroyuki
Faculty Of Engineering Iwate University
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WATANABE Kenji
Engineering Mathematics, School of Engineering, Okayama University
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Watanabe Kazuo
Institute For Materials Research Tohoku University Crest Japan Science And Technology Corporation
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Watanabe Kenji
High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University
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Awaji Satoshi
High Field Laboratory for Superconducting Materials, Institute for Materials Research, Tohoku University
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Watanabe Yasuhiro
Institute for Materials Research, Tohoku University
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