On the Spin Excitations of High-Tc Oxides

  • H. Fukuyama
  • T. Tanamoto
  • K. Kuboki
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 106)


The proximity of the superconducting state to the antiferromagnetic state makes the problem of spin fluctuations one of the central issues in exploring the mechanism of high T c superconductivity. The experimental results of the magnetic spin excitations probed through nuclear magnetic relaxation (NMR) and neutron scattering are discussed with special emphasis on the existence of the apparent gap in the excitation spectrum (spin gap), and its possible explanation is proposed based on the mean field theory for the t – J model.


Hubbard Model Random Phase Approximation Spectral Weight Spin Fluctuation Spin Excitation 
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Copyright information

© Springer-Verlag Berlin, Heidelberg 1992

Authors and Affiliations

  • H. Fukuyama
    • 1
  • T. Tanamoto
    • 2
  • K. Kuboki
    • 3
  1. 1.Institute for Solid State PhysicsUniversity of TokyoRoppongi, Minato-ku, Tokyo 106Japan
  2. 2.Research & Development CenterToshiba Co., Ltd.Kawasaki 210Japan
  3. 3.Department of PhysicsKobe UniversityNada-ku, Kobe 657Japan

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