Neutron Scattering Study on Metal-Insulator Transitions of BaCoS_2 Induced by External Pressure and by Ni-Doping

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概要

• 論文の詳細を見る

• lVIagnetic excitation spectra of' Bacon .cN1xSw, xvhich hats 21 layered strtrcttrre and exhil.>itsMolt metal-instrlator (IVI-I) transition with varying I and/or with increasing external pressure,have been measured and analyzed. The randorn phase treatnaent has been found to be ?tble tobasically describe the observed dynamical magnetic behavior except in the ternperattrre regionwhere the untrunsuc tnagnettc correlation length is larger than the average separation of Ni atorns.The characteristic energy of the spin fltrcttration in txvo kinds of rnetallic phases induced by theNi-doping and by the external pressure p are ratlner dif['errent. These resvxlts indicate that thepressure-induced Mott transition is mainly driven by the irrcrease of tlte transfer energy, whilethe doping-induced transition is driven by the deviation of' the electron nurnber of each relevantband frona unity.

• 社団法人日本物理学会の論文
• 1998-12-15

著者

• Nishi Masakazu

  Neutron Scattering Laboratory Issp University Of Tokyo

• Nishi M

  Neutron Scattering Laboratory Issp University Of Tokyo

• Nishi Masakazu

  Neutron Scattering Laboratory Institute For Solid State Physics The University Of Tokyo

• Nishi Masakazu

  Univ. Tokyo Chiba Jpn

• Nishi Masakazu

  Institute For Solid State Phrsics University Of Tokyo

• Nishi Masakazu

  Issp University Of Tokyo

• KODAMA Katsuaki

  Department of Physics,Division of Material Science,Nagoya University

• HARASHINA Hiroshi

  Department of Physics,Division of Material Science,Nagoya University

• SASAKI Hisashi

  Department of Physics,Division of Material Science,Nagoya University

• SATO Masatoshi

  Department of Physics,Division of Material Science,Nagoya University

• KAKURAI Kazuhisa

  CREST,Japan Science and Technology Corporation (JST)

• HARASHIMA Hiroshi

  Department of Physics,Division of Material Science,Nagoya University

• SHAMOTO Shin-ichi

  Department of Applied Physics,Faculty of Engineering,Tohoku University

• Nishi Masakazu

  Neutron Scattering Laboratory I. S. S. P. University Of Tokyo

• Nishi Masakazu

  Neutron Scattering Laboratory Issp The University Of Tokyo

• 原科 浩

  教養部物理学教室

• Kodama Katsuaki

  Department Of Physics Division Of Material Science Nagoya University:crest Japan Science And Technol

• Kodama Katsuaki

  Department Of Physics Division Of Material Science Nagoya University

• Sasaki Hiromi

  Laboratory Of Physiological Sciences Faculty Of Human Sciences Waseda University

• Shamoto Shin-ichi

  Department Of Applied Physics Faculty Of Engineering Tohoku University

• Shamoto Shin-ichi

  Institute For Molecular Science

• Shamoto Shin-ichi

  Department Of Physics Division Of Material Science Nagoya University

• Sasaki H

  Tohoku Gakuin Univ. Miyagi

• Sasaki Hisashi

  Department Of Physics Division Of Material Science Nagoya University

• Sasaki Hisashi

  Department Of Computer Science Tokyo Institute Of Technology

• NISHI Masato

  Department of Applied Physics,Faculty of Engineering,Hiroshima Univershity

• Harashima Hiroshi

  Department Of Information And Communication Engineering School Of Engineering The University Of Toky

• Sato Masatoshi

  Department Of Electrical And Electronics Engineering Sophia University

• Sato Masatoshi

  Department Of Agro-environmental Science Obihiro University Of Agriculture And Veterinary Medicine

• NISHI Masakazu

  Institute for Solid State Physics, The University of Tokyo

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