Spin Excitations of the Extended t-J Model : Neutron Scattering
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概要
- 論文の詳細を見る
Dynamical spin susceptibility, χ(q, ω), of the t-J model with transfer integrals of the extended spatial range has been evaluated based on the slave-boson mean-field theory for both LSCO- and YBCO-type Fermi surfaces. In the former, the width and height of the incommensurate (IC) peaks are seen to have strong dependences on ω and the temperature, T. Interestingly, and in agreement with experiments, the IC peaks at low energy become sharper in the singlet RVB state which, in our classification, corresponds to the superconducting state in the region of optimal doping. In the case of YBCO, the dependences on o and T at q=Q≡(π, π), the antiferromagnetic wave vector, have particular features which share common qualitative characteristics with the experimental findings.
- 社団法人日本物理学会の論文
- 1993-05-15
著者
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FUKUYAMA Hidetoshi
Department of Applied Physics, Tokyo University of Science
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Fukuyama Hidetoshi
Department Of Physics Univercsity Of Tokyo
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KOHNO Hiroshi
Department of Chemical Science and Technology, Faculty of Engineering, Kyushu University
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Tanamoto Tetsufumi
Department Of Physics University Of Tokyo
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Tanamoto Tetsufumi
R & D Center Toshiba Corporation
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Kohno H
Laboratory Of Ichthyology Tokyo University
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Fukuyama Hidetoshi
Department Of Applied Physics Faculty Of Science Tokyo University Of Science
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Fukuyama Hidetoshi
Department of Applied Physics and Research Institute for Science and Technology, Tokyo University of Science, Shinjuku, Tokyo 162-8601, Japan
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