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Persistent URL http://purl.org/net/epubs/work/50894
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Record Id 50894
Title Stress-induced large Curie temperature enhancement in Fe64Ni36 Invar alloy
Contributors
Abstract We have succeeded in increasing up to 150 K the Curie temperature in the Fe64Ni36 invar alloy by means of a severe mechanical treatment followed by a heating up to 1073 K. The invar behavior is still present as revealed by the combination of magnetic measurements with neutron and x-ray techniques under extreme conditions, such as high temperature and high pressure. The proposed explanation is based in a selective induced microstrain around the Fe atoms, which causes a slight increase in the Fe-Fe interatomic distances, thus reinforcing ferromagnetic interactions due to the strong magnetoelastic coupling in these invar compounds.
Organisation ISIS , ISIS-PEARL , ISIS-POLARIS , STFC
Keywords Physics , Materials
Funding Information
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Phys Rev B 80 (2009): 064421. doi:10.1103/PhysRevB.80.064421 2009
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