Magnetic Excitation of BaCoS2 near the Mott Transitions Induced by Pressure and Carrier-Number Control.

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  • Harashina H.
    Department of Physics, Nagoya Unicaersity CREST Japan Scienoe and Technology Corporation (JST)
  • Sasaki H.
    Department of Physics, Nagoya Unicaersity
  • Kodama K.
    Department of Physics, Nagoya Unicaersity CREST Japan Scienoe and Technology Corporation (JST)
  • Shamoto S.
    Department of Physics, Nagoya Unicaersity
  • Sato M.
    Department of Physics, Nagoya Unicaersity CREST Japan Scienoe and Technology Corporation (JST)
  • Kakurai K.
    CREST Japan Scienoe and Technology Corporation (JST) Neutron Scattering Laboratory, Institute for Solid State Physics, The Universityof Tokyo
  • Nishi M.
    Neutron Scattering Laboratory, Institute for Solid State Physics, The Universityof Tokyo

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  • Magnetic Excitations of BaCoS2 near the Mott Transition Induced by Pressure and Carrier-Number Control
  • Magnetic Excitations of BaCoS2 near the

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Abstract

Neutron inelastic measurements have been carried out to study the dynamical magnetic properties of BaCoS2 near the Mott transitions indueedby two different means, by the application of pressure and by carrier-number control. The low energy excitation spectra have been found to be significantly different between thus induced metallic phases with similar Néel temperatures and similar antiferromagnetic staggered moments atlow temperatures.

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