Magnetization of Iron-Nickel Alloys Under Hydrostatic Pressure
- 1 March 1961
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 32 (3), 435-441
- https://doi.org/10.1063/1.1736020
Abstract
Magnetization measurements were made on iron, nickel, and their alloys in hydrostatic pressures up to 3000 atm and in fields up to 12 000 oe. The results of these room‐temperature measurements, combined with Patrick's results on the pressure dependence of the Curie temperatures, indicate that σ0, the saturation moment at 0°K, as well as θ, the Curie temperature, is rapidly decreased by compression in the fcc alloys of about 30% Ni. This is in agreement with the recent low‐temperature pressure measurements of Kondorsky and Sedov. For these alloys, both σ0 and θ are decreasing with increasing Fe concentration. When the 30% Ni alloy is partially transformed to bcc, its σ0 and θ rise to much higher values but its magnetization is much less pressure dependent. It is concluded that unlike the more simple ferromagnetic bcc alloys, the fcc Fe‐Ni alloys have a coexistence of ferromagnetic and antiferromagnetic order, similar to that recently proposed for the Ni‐Mn alloys.Keywords
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