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024 7 _ |a 10.1063/1.2710181
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100 1 _ |a Lezaic, M.
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245 _ _ |a First-principles prediction of high Curie temperature for ferromagnetic bcc-Co and bcc-FeCo alloys and its relevance to tunneling magnetoresistance
260 _ _ |a Melville, NY
|b American Institute of Physics
|c 2007
300 _ _ |a 082504
336 7 _ |a Journal Article
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440 _ 0 |a Applied Physics Letters
|x 0003-6951
|0 562
|v 90
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a 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.
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700 1 _ |a Mavropoulos, Ph.
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700 1 _ |a Blügel, S.
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773 _ _ |a 10.1063/1.2710181
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