Mossbauer Spectroscopic Study of FeS under Pressure using Synchrotron Radiation : Condensed Matter: Electronic Properties, etc.
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概要
- 論文の詳細を見る
The delay-time spectra of ^<57>Fe nuclear resonant forward scattering in FeS which belongs to the boundary between the charge-transfer and Mott-Hubbard insulators have been observed under high pressure up to about 6 GPa at BL09XU in SPring-8. The observed beat patterns in delay-time spectra are distinguished two different types which correspond to the two different phases. We have successfully applied the maximum-entropy method to analyze the observed delay-time spectra. The frequencies of quantum beats which directly depend on the energy differences between two hyperfine splitting levels of ^<57>Fe nuclei were extracted by this analysis and then the hyperfine interaction parameters were determined from there extracted frequencies. Since the evaluated magnetic hyperfine field at 0.1 MPa is smaller than that at 2 GPa, the Neel temperature of FeS with a troilite structure increases with pressure.
- 社団法人日本物理学会の論文
- 2001-04-15
著者
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YODA Yoshitaka
CREST, Japan Science and Technology Agency
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YODA Yoshitaka
Japan Synchrotron Radiation Research Institute
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Kobayashi Hisao
Department Of Physics Graduate School Of Science Tohoku University
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KAMIMURA Takashi
Department of Physics,Tohoku University
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Yoda Y
Crest Japan Science And Technology Agency:japan Synchrotron Radiation Research Institute
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Yoda Y
Crest Japan Science And Technology Agency
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Yoda Yoshitaka
Japan Synchrotron Radiation Reserch Institute Sayou-gun
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Yoda Yoshitaka
Japan Synchrotron Radiation Institute
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Yoda Yoshitaka
Department Of Applied Physics Faculty Of Engineering The University Of Tokyo
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Kobayashi H
Tohoku Univ. Sendai‐shi Jpn
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Kobayashi H
Inst. Molecular Sci. Aichi
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Kobayashi Hisao
Department Of Physics Tohoku University
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Kamimura Takashi
Department Of Physics Tohoku University
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Kamimura Takashi
Department Of Physics Faculty Of Science Tohoku University
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Kurai Hiroyuki
Department Of Organic And Polymeric Materials Tokyo Institute Of Technology
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Yoda Y.
Crest Japan Science And Technology Agency
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Kamimura T
Department Of Physics Tohoku University
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Kamimura Tetsuo
National Institute For Fusion Science
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Kobayashi Hisao
Department of Physics, Tohoku University
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Kamimura Takashi
Department of Life Chemistry, Tokyo Institute of Technology
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