TY  - JOUR
AU  - Long, N. H.
AU  - Ogura, M.
AU  - Akai, H.
TI  - Spin-wave excitations in half-metallic materials
JO  - Physical review / B
VL  - 85
IS  - 22
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-22312
SP  - 224437
PY  - 2012
N1  - This work was supported by the Next Generation Super Computing Project, Nanoscience Program, MEXT, Japan, and by MEXT KAKENHI No. 17064008.
AB  - 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.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000305783500005
DO  - DOI:10.1103/PhysRevB.85.224437
UR  - https://juser.fz-juelich.de/record/22312
ER  -