Pressure Effect of Curie Point of CoS_2 and Feromagnetic Properties of Co(S_xSe_<1-x>)_2
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概要
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The change of the Curie point of CoS_2 under hydrostatic pressure up to 5.3kbar was investigated, and the value of ΔT_c/ΔP was obtained to be -0.86 deg・kbar^<-1>. The linear compressibility of FeS_2, having approximately the same crystal structure with CoS_2, was measured, and the value of (1/l)(Δl/Δpp) was given as 2.31×10^<-7>bar^<-1> at 296°K. The relation between the change of the Curie point and the interatomic distance was obtained from the both results. This result was applied to an explanation of the ferromagnetic property of Co(S_xSe_<1-x>)_2, and the exchange interaction of this system was discussed. An iso-volume magnetic phase diagram of this system was illustrated.
- 社団法人日本物理学会の論文
- 1969-03-05
著者
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SATO Kiyoo
Faculty of Engineering Fukui University of Technology
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TATSUMOTO Eiji
Faculty of Science, Hiroshima University
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Tatsumoto Eiji
Faculty Of Science Hiroshima University
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Okamoto Tetsuhiko
Faculty Of General Education Hiroshima University
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Sato Kiyoo
Faculty Of Engineering Nagoya Univeristy
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Adachi Kengo
Faculty Of Engineering Nagoya Unibersity
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Adachi Kengo
Faculty Of Engineering Nagoya Univeristy
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Okamoto Tetsuhiko
Faculty Of General Education And Facutly Of Science Hiroshima University
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