%0 Journal Article
%A Long, N. H.
%A Ogura, M.
%A Akai, H.
%T Spin-wave excitations in half-metallic materials
%J Physical review / B
%V 85
%N 22
%@ 1098-0121
%C College Park, Md.
%I APS
%M PreJuSER-22312
%P 224437
%D 2012
%Z This work was supported by the Next Generation Super Computing Project, Nanoscience Program, MEXT, Japan, and by MEXT KAKENHI No. 17064008.
%X Finite-temperature magnetic properties of half-metallic materials are investigated on the basis of the first-principles Korringa-Kohn-Rostoker Green's function method. Influences of spin-wave excitations on the electronic structure are examined in the framework of the coherent potential approximation. The calculations show that the half-metallicity is easily destroyed due to an appearence of low-energy electron excited states in the minority-spin band gap at finite temperature. On the other hand, calculated dc conductivity shows that the 100% spin-polarized conduction occurring in half-metallic materials hardly deteriorates even in such a temperature.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000305783500005
%R 10.1103/PhysRevB.85.224437
%U https://juser.fz-juelich.de/record/22312