Spin Excitations of the Extended <I>t</I>-<I>J</I> 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
Bibliographic Information
- Other Title
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- Spin Excitations of the Extended t-J Model--Neutron Scattering
- Spin Excitations of the Extended t J Mo
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Abstract
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.
Journal
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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
THE PHYSICAL SOCIETY OF JAPAN
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Details 詳細情報について
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- CRID
- 1390282679153756416
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- NII Article ID
- 110001955924
- 130003901980
- 210000097332
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- NII Book 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 BIB ID
- 3820025
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed