%0 Journal Article
%A Lezaic, M.
%A Mavropoulos, Ph.
%A Blügel, S.
%T First-principles prediction of high Curie temperature for ferromagnetic bcc-Co and bcc-FeCo alloys and its relevance to tunneling magnetoresistance
%J Applied physics letters
%V 90
%@ 0003-6951
%C Melville, NY
%I American Institute of Physics
%M PreJuSER-55971
%P 082504
%D 2007
%Z Record converted from VDB: 12.11.2012
%X The authors determine from first principles the Curie temperature T-C for bulk Co in the hcp, fcc, bcc, and body-centered-tetragonal (bct) phases, for FeCo alloys, and for bcc and bct Fe. For bcc Co, T-C=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. (c) 2007 American Institute of Physics.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000244420600051
%R 10.1063/1.2710181
%U https://juser.fz-juelich.de/record/55971