Random Mixtures in Annealed and Quenched Ising Bond Model
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概要
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The two-dimensional Ising model with two kinds of bonds-ferro and antiferromagnetic-is investigated in both quenched and annealed approximations. High temperature series expansion technique is used to get the respective free energies and susceptibilities. From the analysis of the ratio method results, the phase diagrams are drawn and critical concentrations are estimated. It is shown that in both approximations the system behaves similarly, although in the annealed case the magnetically ordered phases are more stable against increasing impurity concentration. It is also proved that for Bethe lattices initial susceptibilities for quenched and annealed systems coincide.
- 理論物理学刊行会の論文
- 1975-10-25
著者
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OGUCHI Tamio
National Research Institute for Metals
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Oguchi Takehiko
Department Of Physics Tokyo Insitute Of Technology:the Technological University Of Nagaoka
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Pekalski Andrzej
Institute Of Theoretical Physics University Of Wroclaw
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OGUCHI Takehiko
Department of Physics, Tokyo Institute of Technology : Department of Sciences and Mathematics, The Technological University of Nagaoka
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