Commensurate Itinerant Antiferromagnetism in BaFe_2As_2 : ^<75>As-NMR Studies on a Self-Flux Grown Single Crystal(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
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概要
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We report results of ^<75>As nuclear magnetic resonance (NMR) experiments on a self-flux grown single crystal of BaFe_2As_2. A first-order antiferromagnetic (AF) transition near 135K was detected by the splitting of NMR lines, which is accompanied by simultaneous structural transition as evidenced by a sudden large change of the electric field gradient tensor at the As site. The NMR results lead almost uniquely to the stripe spin structure in the AF phase. The data of spin-lattice relaxation rate indicate development of anisotropic spin fluctuations of the stripe-type with decreasing temperature in the paramagnetic phase.
- 社団法人日本物理学会の論文
- 2008-11-15
著者
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YOSHIDA Makoto
Institute of Fluid Science, Tohoku University
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TAKIGAWA Masashi
Institute for Solid State Physics, University of Tokyo
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KITAGAWA Kentaro
Institute for Solid State Physics, University of Tokyo
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KATAYAMA Naoyuki
Institute for Solid State Physics, University of Tokyo
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OHGUSHI Kenya
Institute for Solid State Physics, University of Tokyo
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Ohgushi Kenya
Institute For Solid State Physics University Of Tokyo
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Kitagawa Kentaro
Institute For Solid State Physics University Of Tokyo
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Takigawa Masashi
Univ. Tokyo Chiba Jpn
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Takigawa Masashi
Institute For Solid State Physics Iniversity Of Tokyo
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Katayama Naoyuki
Institute For Solid State Physics University Of Tokyo
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Katayama Naoyuki
Institute For Solid State Physics The University Of Tokyo
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Yoshida Makoto
Institute For Solid State Physics University Of Tokyo
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Yoshida Makoto
Institute For Materials Reserch
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Ohgushi Kenya
Institute For Solid State Physics University Of Tokyo:jst Trip
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Takigawa Masashi
Institute For Solid State Physics University Of Tokyo:jst Trip
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Yoshida Makoto
Institute for Materials Research, Tohoku University, Sendai 980-8577
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Ohgushi Kenya
Institute for Solid State Physics
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