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Quantum Hall effect in the field-induced spin density wave states |
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| Authors: | Yasumasa Hasegawa Kazushige Machida Mahito Kohmoto and Victor M Yakovenko |
| Affiliation: | (1) Faculty of Science, Himeji Institute of Technology, Kamigouri-chou, Akou-gun, 678-12 Hyogo, Japan;(2) Department of Physics, Okayama University, 700 Okayama, Japan;(3) Institute for Solid State Physics, University of Tokyo, Roppongi, Minato-ku, 106 Tokyo, Japan;(4) Serin Physics Laboratory, Rutgers University, P.O. Box 849, 08855 Piscataway, New Jersey |
| Abstract: | The Hall conductance is investigated in the field-induced spin density wave phases of the quasi-one-dimensional system. The role of the order parameters in the quantization of the Hall effect is shown in the framework of the topological number of the wave functions in the momentum space. A possible mechanism of the sign changes of the Hall conductance observed in the experiments is proposed in this framework. |
| Keywords: | Quantum Hall effect field-induced spin density wave |
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