Critical Exponents of the Ground State Phase Transitions of the Spin 1/2 Ferromagnetic-Antiferromagnetic Alternating Heisenberg Chain with Anisotropy
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概要
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The critical exponents of the phase transitions in the ground state of the ferromagnetic-antiferromagnetic alternating spin-1/2 Heisenberg chain are determined by means of the numerical diagonalization with emphasis on the boundary between the Haldane phase and the large-D phase. It is found that this phase boundary is a line of continuously varying critical exponents. The results are in agreement with the series expansion results by Yamanaka, Hatsugai and Kohmoto.
- 社団法人日本物理学会の論文
- 1993-05-15
著者
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Hida K
Saitama Univ. Saitama
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Hida Kazuo
Department Of Physics Faculty Of Science Saitama University
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Hida Kazuo
Department Of Engineering Science Faculty Of Engineering Hokkaido University
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