Numerical-Diagonalization Analyses of an Effective Hamiltonian for the Haldane System
スポンサーリンク
概要
- 論文の詳細を見る
Numerical-diagonalization analyses of an effective Hamiltonian for the Haldane system are given ; the phase diagram of this Hamiltonian was previously studied only by means of the Hatree-Fock approximation. Phase transitions of the transverse-Ising-model type are found, and the phase diagram in the λ -D plane is depicted. The dependence of the phase boundary on the next-nearest-neighbor competing interaction is also studied in this effective-Hamiltonian formalism. A physical point of view is obtained by inspecting the low-lying excitation spectra of the effective Hamiltonian, and the correspondence to the original Haldane system is discussed.
- 社団法人日本物理学会の論文
- 1994-09-15
著者
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NISHIYAMA Yoshihiro
JASRI
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Nishiyama Yoshihiro
Department Of Physics University Of Tokyo
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Nishiyama Yoshihiro
Department Of Radiology Kagawa University School Of Medicine
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Hatano N
Univ. Tokyo Tokyo
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Hatano Naomichi
Department Of Physics University Of Tokyo:lyman Laboratory Of Physics Harvard University
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Hatano N
Aoyama Gakuin Univ. Tokyo
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SUZUKI Masuo
Department of Physics, University of Tokyo
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Nishiyama Yoshihiro
Department Of Physics Faculty Of Science Okayama University
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Suzuki Masuo
Department Of Physics Faculty Of Science The University Of Tokyo
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鈴木 勝
電気通信大学量子・物質工学科
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Hatano Naomichi
Department Of Physics Aoyama Gakuin University
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Suzuki Masuo
Department Of Applied Physics Science University Of Tokyo
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HATANO Naomichi
Department of Physics, Aoyama-Gakuin University
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