Variation of Tricritical Point of a Metamagnet with Dilution
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概要
- 論文の詳細を見る
Tricritical point (TCP) of a dilute metamagnet is investigated by the Takagiapproximation on the basis of Ising meta-model. It is shown that the tricriticaltemperature decreases when the system is diluted by non-magnetic atoms,and becomes zero at the concentration c, which coincides with the criticalconcentration of a ferromagnetic plane in the same approximation, despite ofessentially three-dimensional nature of the metamagnetic transition. It is alsoshown that, in contrast to the tricritical temperature, the tricritical field tends toa finite value with dilution.The results obtained agree qualitatively with the magneto-optical study ofdilute metamagnet Fe,Mg. ,Cl. by Wood and Day.
- 社団法人日本物理学会の論文
- 1979-07-15
著者
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Ishikawa Takuma
Department Of Materials Science Iwakimeisei University
-
Wada Koh
Department Of Physics Faculty Of Science Hokkaido University
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Ishikawa Takuma
Department of Electrical and Electronic Engineering, College of Engineering, Nihon University, Tamura-machi, Koriyama, Fukushima 963-8642, Japan
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Wada Koh
Department of Physics,Hokkaido University
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