Published in
American Physical Society, Physical review B, 6(80), 2009
DOI: 10.1103/physrevb.80.064421
Links
- ORCID
- ORCID
- American Physical Society
- [hal-insu.archives-ouvertes.fr]
- [hal-insu.archives-ouvertes.fr]
- [www.researchgate.net] | PDF
- [www.researchgate.net] | PDF
- [digibuo.uniovi.es] | PDF
- [eprints.ucm.es] | PDF
Tools
Stress-induced large Curie temperature enhancement inFe64Ni36Invar alloy
,
María A. Laguna-Marco,
Daniel Haskel,
N. Souza-Neto,
Ronald I. Smith,
William G. Marshall,
Gaston Garbarino,
Mohamed Mezouar,
Alejandro Fernández-Martínez,
Jesús Chaboy,
L. Fernandez Barquín
and other authors.
Full text: Download
Abstract
6 pages ; International audience ; 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.