TY  - JOUR
AU  - Zhang, H.
AU  - Freimuth, F.
AU  - Blügel, S.
AU  - and Mokrousov, Y.
TI  - Role of Spin-Flip Transitions in the Anomalous Hall Effect of FePt Alloy
JO  - Physical review letters
VL  - 106
SN  - 0031-9007
CY  - College Park, Md.
PB  - APS
M1  - PreJuSER-14668
SP  - 117202
PY  - 2011
N1  - We acknowledge discussions with M. Lezaic, Ph. Mavropoulos, and K. M. Seemann. This work was supported by the HGF-YIG Programme VH-NG-513 and NSF Grant DMR-0706493. Computational time on JUROPA and JUGENE supercomputers was provided by Julich Supercomputing Centre.
AB  - We carry out ab initio calculations which demonstrate the importance of the non-spin-conserving part of the spin-orbit interaction for the intrinsic anomalous Hall conductivity of ordered FePt alloys. The impact of this interaction is strongly reduced if Pt is replaced by the lighter isoelectronic element Pd. An analysis of the interband transitions responsible for the anomalous velocity reveals that spin-flip transitions occur not only at avoided band crossings near the Fermi level, but also between well-separated pairs of bands with similar dispersions. We also predict a strong anisotropy in the anomalous Hall conductivity of FePt caused entirely by low-frequency spin-flip transitions.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000288450800021
DO  - DOI:10.1103/PhysRevLett.106.117202
UR  - https://juser.fz-juelich.de/record/14668
ER  -