Ground State Properties of One Dimensional S=1/2 Heisenberg Model with Dimerization and Quadrumerization
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概要
- 論文の詳細を見る
The one dimensional S = 1/2 Heisenberg model with dimerization and quadrumerization is studied hy means of the numerical exact diagonalization of finite size systems. Using the phenomenological renormalization group and finite size scaling law, the ground state phase diagram is obtained in the isotropic case, It exhibits a variety of the ground states which contains the S = 1 Haldane state, S = 1 dimer state and S = 1/2 dimer state as limiting cases. The gap exponent v is also calculated which coincides with the value for the dimerization transition of the isotropic Heisenberg chain. In the XY limit, the phase diagram is obtained analytically and the comparison is made with the isotropic case.
- 社団法人日本物理学会の論文
- 1998-08-15
著者
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Chen Wei
Department of Obstetrics and Gynecology, Kobe University Graduate School of Medicine
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Hida Kazuo
Department Of Physics Faculty Of Science Saitama University
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Hida Kazuo
Department Of Physics Saitama University
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Hida Kazuo
Department Of Engineering Science Faculty Of Engineering Hokkaido University
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Chen Wei
Department Of Chemical Engineering Nagoya University
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