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024 7 _ |a 10.1063/1.3592168
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037 _ _ |a PreJuSER-17871
041 _ _ |a eng
082 _ _ |a 530
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|a Physics, Applied
100 1 _ |a Galanakis, I.
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245 _ _ |a Stability of ferromagnetism against doping in half-metallic alloys
260 _ _ |a Melville, NY
|b American Institute of Physics
|c 2011
300 _ _ |a 113912
336 7 _ |a Journal Article
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440 _ 0 |a Journal of Applied Physics
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500 _ _ |3 POF3_Assignment on 2016-02-29
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a We use a rigid band model to simulate doping in half-metallic NiMnSb and CoMnSb semi-Heusler alloys. Using first-principles calculations we calculate the intrasublattice exchange constants and the Curie temperature for these alloys as a function of the shift of the Fermi level and compare them also with the case of half-metallic CrAs and CrSe zinc-blende alloys. We show for all four compounds that the interactions between Cr-Cr(Mn-Mn) nearest neighbors are sufficient to explain the behavior of the Curie temperature. The interplay between the ferromagnetic RKKY-like and the antiferromagnetic superexchange interactions depends strongly on the details of the density of states around the minority-spin gap and thus it is found to be alloy-dependent. (C) 2011 American Institute of Physics. [doi:10.1063/1.3592168]
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773 _ _ |a 10.1063/1.3592168
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856 7 _ |u http://dx.doi.org/10.1063/1.3592168
856 4 _ |u https://juser.fz-juelich.de/record/17871/files/FZJ-17871.pdf
|y Published under German "Allianz" Licensing conditions on 2011-06-07. Available in OpenAccess from 2011-06-07
|z Published final document.
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