%0 Journal Article
%A Sasioglu, E.
%T Nonzero macroscopic magnetization in half-metallic antiferromagnets at finite temperatures
%J Physical review / B
%V 79
%N 10
%@ 1098-0121
%C College Park, Md.
%I APS
%M PreJuSER-6293
%P 100406
%D 2009
%Z Record converted from VDB: 12.11.2012
%X Combining density-functional theory calculations with many-body Green's-function technique, we reveal that the macroscopic magnetization in half-metallic antiferromagnets does not vanish at finite temperature as for the T=0 limit. This anomalous behavior stems from the inequivalent magnetic sublattices which lead to different intrasublattice exchange interactions. As a consequence, the spin fluctuations suppress the magnetic order of the sublattices in a different way leading to a ferrimagnetic state at finite temperatures. Computational results are presented for the half-metallic antiferromagnetic CrMnZ (Z=P,As,Sb) semi-Heusler compounds.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000264768600014
%R 10.1103/PhysRevB.79.100406
%U https://juser.fz-juelich.de/record/6293