TY  - JOUR
AU  - dos Santos, Flaviano José
AU  - dos Santos Dias, Manuel
AU  - Lounis, Samir
TI  - First-principles investigation of spin-wave dispersions in surface-reconstructed Co thin films on W(110)
JO  - Physical review / B
VL  - 95
IS  - 13
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2017-03002
SP  - 134408
PY  - 2017
AB  - We computed spin-wave dispersions of surface-reconstructed Co films on the W(110) surface in the adiabatic approximation. The magnetic exchange interactions are obtained via first-principles electronic-structure calculations using the Korringa-Kohn-Rostoker Green-function method. We analyze the strength and oscillatory behavior of the intralayer and interlayer magnetic interactions and investigate the resulting spin-wave dispersions as a function of the thickness of Co films. In particular, we highlight and explain the strong impact of hybridization of the electronic states at the Co-W interface on the magnetic exchange interactions and on the spin-wave dispersions. We compare our results to recent measurements based on electron-energy-loss spectroscopy [E. Michel, H. Ibach, and C. M. Schneider, Phys. Rev. B 92, 024407 (2015)]. Good overall agreement with experimental findings can be obtained by considering the possible overestimation of the spin splitting, stemming from the local-spin-density approximation, and adopting an appropriate correction.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000399381300003
DO  - DOI:10.1103/PhysRevB.95.134408
UR  - https://juser.fz-juelich.de/record/829272
ER  -