TY  - JOUR
AU  - Lounis, Samir
AU  - dos Santos Dias, Manuel
AU  - Schweflinghaus, Benedikt
TI  - Transverse dynamical magnetic susceptibilities from regular static density functional theory: Evaluation of damping and g shifts of spin excitations
JO  - Physical review / B
VL  - 91
IS  - 10
SN  - 1098-0121
CY  - College Park, Md.
PB  - APS
M1  - FZJ-2015-05493
SP  - 104420
PY  - 2015
AB  - The dynamical transverse magnetic Kohn-Sham susceptibility calculated within time-dependent density functional theory shows a fairly linear behavior for a finite energy window. This observation is used to propose a scheme where the computation of this quantity is greatly simplified. Regular simulations based on static density functional theory can be used to extract the dynamical behavior of the magnetic response function. Besides the ability to calculate elegantly damping of magnetic excitations due to electron-hole excitations, we derive along the way useful equations giving the main characteristics of these excitations: effective g factors and the resonance frequencies that can be accessed experimentally using inelastic scanning tunneling spectroscopy or spin-polarized electron energy loss spectroscopy.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000352076900006
DO  - DOI:10.1103/PhysRevB.91.104420
UR  - https://juser.fz-juelich.de/record/204909
ER  -