Journal of the Physical Society of Japan
Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015
On the Forced Magnetostriction of Fe–Ni Invar Alloys at 4.2°K
Minoru MatsumotoTakejiro KanekoHiroyasu Fujimori
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1969 Volume 26 Issue 5 Pages 1083-1086

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Abstract
Transverse and longitudinal forced magnetostrictions of Fe–Ni Invar alloys were measured by means of the paper strain gauge technique at room temperature, 77° and 4.2°K. From the measured values of the forced magneto-strictions, the pressure coefficients of the absolute saturation magnetization were estimated. The absolute values of the pressure coefficients of the absolute saturation magnetization were found to decrease monotonically with an increase of Ni concentration. On the basis of Sidorov’s theory the pressure effect on the absolute saturation magnetization is discussed.
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