Concentration Expansion Study of the Randomly Dilute Ising Ferromagnet with Second Neighbor Interaction
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概要
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The critical properties of the randomly dilute Ising ferromagnet are discussed for thesquare lattice by the method of concentration expansion. The studies are mostly limitedto the unvestigation of the effects of the second neighbor interaction on the concentratuon dependence of the Curie temperature T.(p) and on the temperature de-pendence of the critical exponent 7(O) describing the susceptibility divergence. Theseries obtained is analysed by the root, ratio, a?ad Pad6 approximant methods,respectively. As for T.(p), the previous results are reconfirmed by raising the degree ofserues expansion. The present calculation gives an apparent tempcrature dependence of7(0) and its behavior can be compared with the results previously calculated for somethree-dimensional lattices. Furthermore, it is found that the essential feature of 7((l)) isnot affected by the presence of the second neighbor interaction.
- 社団法人日本物理学会の論文
- 1977-09-15
著者
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Uryu Norikiyo
Department Of Applied Science Faculty Of Engineering 36 Kyushu University
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Idogaki Toshihiro
Department Of Applied Scienc Faculty Of Engineering Kyushu University
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Uryu Norikiyo
Department of Applied Science,Faculty of Engineering,Kyushu University
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