Metal-Insulator Transition and Itinerant Antiferromagnetism in NiS_<2-x>Se_x Pyrite : Condensed Matter: Electronic Properties, etc.

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概要

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• The bandwidth-controlled metal-insulator (MI) transition in pyrite-type NiS_<2-x>Se_x has been investigated. The results indicate that the approach to the MI transition from the metallic side is profoundly affected by the presence of the antiferromagnetic metal (AFM) phase (0.4 < x < 1.0) immediately next to the MI phase boundary. In the paramagnetic metal (PM) phase (1.0 < x <__- 2.0), the approach is simply characterized by mass enhancement. In the AFM phase, however, the approach is driven by a marked decrease in the carrier density on approaching the insulating phase.

• 社団法人日本物理学会の論文
• 2000-10-15

著者

• Miyasaka Shigeki

  Correlated Electon Research Center (cerc) National Institute Of Advanced Industrial Science And Tech

• Miyasaka Shigeki

  Institute For Solid State Physics University Of Tokyo:(present)joint Research Center For Atom Techno

• Miyasaka Shigeki

  Institute For Solid State Physics University Of Tokyo

• Sekine Yoshiaki

  Institute For Solid State Physics University Of Tokyo

• TAKAHASHI Hiroki

  Institute of Advanced Energy, Kyoto University

• MORI Nobuo

  Institute of Solid State Physics, University of Tokyo

• TAKAGI Hidenori

  institute for Solid State Physics,University of Tokyo

• Mori Nobuo

  Institute For Solid State Physics University Of Tokyo

• CAVA Robert

  Department of Chemistry, Princeton University

• Cava Robert

  Department Of Chemistry Princeton University

• Sekine Yoshiaki

  Institute For Solid State Physics The University Of Tokyo

• Mori Nobuo

  Institute For Solid State Physics The University Of Tokyo

• Takagi Hidenori

  Institute For Solid State Physics University Of Tokyo:(present)department Of Advanced Materials Scie

• Takagi Hidenori

  Institute For Solid State Physics University Of Tokyo

• Takahashi Hiroki

  Institute For Solid State Physics University Of Tokyo

• MORI Nobuo

  Institute for Solid State Physics (ISSP), University of Tokyo:(Present address)Department of Physics, Faculty of Science, Saitama University

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