Thermal collapse of spin-polarization in half-metallic ferromagnets

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dc.creatorLezaic, M.
dc.creatorMavropoulos, Ph.
dc.creatorEnkovaara, J.
dc.creatorBihlmayer, G.
dc.creatorBlügel, S.
dc.date2005-12-13
dc.date.accessioned2026-07-07T06:53:19Z
dc.date.available2026-07-07T06:53:19Z
dc.descriptionThe temperature dependence of the magnetization and spin-polarization at the Fermi level is investigated for half-metallic ferromagnets. We reveal a new mechanism, where the hybridization of states forming the half-metallic gap depends on thermal spin fluctuations and the polarization can drop abruptly at temperatures much lower than the Curie point. We verify this for NiMnSb by ab-initio calculations. The thermal properties are studied by mapping ab-initio results to an extended Heisenberg model which includes longitudinal fluctuations and is solved by a Monte Carlo method.
dc.identifierhttps://arxiv.org/abs/cond-mat/0512277
dc.identifierhttp://arxiv.org/abs/cond-mat/0512277
dc.identifierPhys. Rev. Lett. 97, 026404 (2006)
dc.identifierdoi:10.1103/PhysRevLett.97.026404
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/105545
dc.subjectMaterials Science
dc.titleThermal collapse of spin-polarization in half-metallic ferromagnets
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