Antiferromagnetic vs Spin-Peierls State in 1-D Heisenberg Antiferromagnets
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概要
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We have treated the 1-D Heisenberg antiferromagnet in a mean-field theory,and determined a phase diagram showing the regions for the antiferromagneticstate, the spin-Peierls state and the paramagnetic state. When a spin-phononcoupling constant is greater than 1.08, the antiferromagnetic state is stable belowa N<Set temperature 7'.=O.568.Z/Ag. When it is less than 1.08, the spin-Peierlsstate is stable below a transition temperature T., which is higher than T. andincreases as the coupling constant decreases.
- 社団法人日本物理学会の論文
- 1982-05-15
著者
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Kondo Jun
Electro-technical Laboratory Tsukuba Research Center
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Kondo Jun
Electro-technical Laboratory
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KINOSHITA Tatsue
Electro-technical Laboratory,Tsukuba Research Center
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Kinoshita Tatsue
Electro-technical Laboratory Tsukuba Research Center
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