Magnetovolume Effect in Fe-Ni Invar Alloys below and above the Curie Temperature
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概要
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A detailed comparison of the thermal expansion coefficient in Fe-Ni Invarallays with the results of magnetization rneasurements has been made in a widetemperature range both below and above the Curie temperatures. A new methodof determining the lattice term from the observed thermal expansion coefficienthas been proposed and applied to the estimation of the magnetic contribution tothe thermal expansion coefficient. It has been found that the magnetic contributionbelow the Curie temperature is well expressed with the factor Mc3M/dT and thatit is proportional to dz -"/c1T above the Curie temperature. These results can wellbe explained by the spin fluctuation theory developed by Moriya and Usami.
- 一般社団法人日本物理学会の論文
- 1981-07-15
著者
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Ono Fumihisa
Department Of Applied Physics Faculty Of Engineering Tohoku University
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Ono Fumihisa
Department of Physics,Faculty of Science,Okayama University
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