On the Magnetically Dilute Ferromagnetic System
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概要
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The problems on the magnetic dilution in the ferromagnetic system are discussed by the use of the Ising model of spin 1/2. In addition to the exchange interaction between nearest neighbors, the next nearest neighbor(n.n.n.) interaction has been taken into consideration, and the magnetic properties are calculated by the method of concentration expansion. Particularly the critical concentration and the concentration dependence of the Curie temperature have been calculated for several lattice structures. In some crystal lattices, the n.n.n. interaction concerns to the change of the dimensionality of the magnetic lattice and then the effects of the n.n.n. interaction are quite remarkable in the concentration dependence. The numerical values of the critical concentration and the Curie temperature calculated in the present method are compared with the results previously calculated by various methods and good agreement is obtained.
- 社団法人日本物理学会の論文
- 1973-12-05
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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