Critical Responses to Magnetic Field for Fully-Frustrated Square Ising Spin Systems

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概要

• 論文の詳細を見る

• We simulate many kinds of fully-frustrated square Ising systems under the uniform magnetic field and observe various types of dependence of the magnetization on the field at low temperatures. For some systems, a critical dependence is observed ; the response exhibits the scaling law belonging to the Villain-Stephenson universality class of δ=7. For other systems, a non-critical dependence (δ=1) and a marginal one are observed. Based on an idea of the partially disordered state, we propose a simplified method which can predict whether the response to the uniform field is critical or not. We examine possible changes in critical exponents through a mechanism of cancellation among the spin pair correlation functions.

• 社団法人日本物理学会の論文
• 1995-04-15

著者

• KASAI Yasuhiro

  Department of Applied Physics Osaka University

• Kasai Y

  Osaka Univ. Suita

• Kasai Yasuhiro

  Toxicology Group Pharmaceutical Discovery Department Pharmaceutical Research Laboratories Nikken Che

• Kasai Yasuhiro

  School Of Applied Physics Osaka University

• Kasai Yasuhiro

  Department Of Applied Physics Faculty Of Engineering Osaka University

• IMAOKA Hitoshi

  Department of Applied Physics,Osaka University

• IMAOKA Hitoshi

  School of Applied Physics,Osaka University

• Ohnaka Kohzaburo

  Department of Mathematical Sciences, Osaka University

• Imaoka H

  Nec Corp.

• Imaoka Hitoshi

  Department Of Applied Physics Osaka University

• 大中 幸三郎

  大阪大学大学院工学研究科

• Ohnaka Kohzaburo

  Department Of Applied Physics Graduate School Of Engineering Osaka University

• Kasai Yasuhiro

  Toxicology Group, Pharmaceutical Discovery Department, Pharmaceutical Research Laboratories, Nikken Chemicals Co., Ltd.

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