First-principles prediction of high Curie temperature for ferromagnetic bcc-Co and bcc-FeCo alloys and its relevance to tunneling magnetoresistance

Simple item page
dc.creatorLezaic, Marjana
dc.creatorMavropoulos, Phivos
dc.creatorBlügel, Stefan
dc.date2006-12-19
dc.date.accessioned2026-07-07T07:52:16Z
dc.date.available2026-07-07T07:52:16Z
dc.descriptionWe determine from first-principles the Curie temperature Tc for bulk Co in the hcp, fcc, bcc, and tetragonalized bct phases, for FeCo alloys, and for bcc and bct Fe. For bcc-Co, Tc=1420 K is predicted. This would be the highest Curie temperature among the Co phases, suggesting that bcc-Co/MgO/bcc-Co tunnel junctions offer high magnetoresistance ratios even at room temperature. The Curie temperatures are calculated by mapping ab initio results to a Heisenberg model, which is solved by a Monte Carlo method.
dc.identifierhttps://arxiv.org/abs/cond-mat/0612497
dc.identifierhttp://arxiv.org/abs/cond-mat/0612497
dc.identifierAppl. Phys. Lett. 90, 082504 (2007)
dc.identifierdoi:10.1063/1.2710181
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/125820
dc.subjectMaterials Science
dc.titleFirst-principles prediction of high Curie temperature for ferromagnetic bcc-Co and bcc-FeCo alloys and its relevance to tunneling magnetoresistance
dc.typetext

Files

Collections

arXiv