Spin Excitations of the Extended t-J Model--Neutron Scattering
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- Tanamoto Tetsufumi
- Department of Physics, Faculty of Science, University of Tokyo
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- Kohno Hiroshi
- Department of Physics, Faculty of Science, University of Tokyo
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- Fukuyama Hidetoshi
- Department of Physics, Faculty of Science, University of Tokyo
書誌事項
- タイトル別名
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- Spin Excitations of the Extended <I>t</I>-<I>J</I> Model: Neutron Scattering
- Spin Excitations of the Extended t J Mo
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抄録
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 ω and T at q=Q≡(π, π), the antiferromagnetic wave vector, have particular features which share common qualitative characteristics with the experimental findings.
収録刊行物
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- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
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Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 62 (5), 1455-1458, 1993
一般社団法人 日本物理学会
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詳細情報 詳細情報について
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- CRID
- 1390282679153756416
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- NII論文ID
- 110001955924
- 130003901980
- 210000097332
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- NII書誌ID
- AA00704814
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- BIBCODE
- 1993JPSJ...62.1455T
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- COI
- 1:CAS:528:DyaK3sXkvVChur4%3D
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- ISSN
- 13474073
- 00319015
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- NDL書誌ID
- 3820025
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可