Explicit KF-Percolation Transitions in 2D Strongly-Frustrated Spin Systems
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概要
- 論文の詳細を見る
An Ising spin systezaa can be expressed as a percolation system, formulated by Kasteleyn andFortuin (KF), of' the spin clusters cotrpled by interactions efl'ective against the thermal agitation.For the 2D strongly-f'rustrated Ising spin systexaa, the free energy does not show any criticality atthe percolation transition tenuperature of the explicit singularity in the KF-percolation generatingfunction. By extending it into a frvrstrated Potts spin systena with a general degree of internalfreedona, the criticality of KF-percolation expression becoraaes explicit in the ordinary free energy.The universality class lcelongs to the I'errouaaagnetic Potts uaaodel with the half degree of' its Pottsspin freedom; this uneans that tlae effective spin freedoraa of the frtustrated Ising spin system isvxnity.
- 社団法人日本物理学会の論文
- 1998-07-15
著者
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KASAI Yasuhiro
Department of Applied Physics Osaka University
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IKEDA Hideo
Department of Molecular Biology, Institute of Medical Science, The University of Tokyo, Tokyo Japan
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Kasai Yasuhiro
Department Of Applied Physics Faculty Of Engineering Osaka University
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Ikeda Hideo
Department Of Applied Physics Osaka University
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