Stabilization of the tetragonal distortion of Fe chi Co1-chi alloys by C impurities: A potential new permanent magnet
2014 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 89, no 14, 144403- p.Article in journal (Refereed) Published
We have analyzed by density functional theory calculations the structural and magnetic properties of Fe-Co alloys doped by carbon. In analogy with the formation of martensite in steels we predict that such a structure also forms for Fe-Co alloys in a wide range of concentrations. These alloys are predicted to have a stable tetragonal distortion, which in turn leads to an enhanced magnetocrystalline anisotropy energy of up to 0.75 MJ/m(3) and a saturated magnetization field of 1.9 T.
Place, publisher, year, edition, pages
2014. Vol. 89, no 14, 144403- p.
IdentifiersURN: urn:nbn:se:uu:diva-224328DOI: 10.1103/PhysRevB.89.144403ISI: 000333665500003OAI: oai:DiVA.org:uu-224328DiVA: diva2:717114
FunderSwedish National Infrastructure for Computing (SNIC), SNIC 001/12-198