TY - JOUR
T1 - First principles investigation of the validity and range of applicability of the x-ray magnetic circular dichroism sum rule
AU - Wu, Ruqian
AU - Wang, Dingsheng
AU - Freeman, A. J.
PY - 1993
Y1 - 1993
N2 - X-ray magnetic circular dichroism (MCD) spectra and orbital angular momentum, Lz, for transition metal bulk and surfaces were studied for both ground state and core hole excitations using a highly precise local density approach. For Fe(001), we predict a double peak structure in both the MCD and total absorption spectra and a strong enhancement of Iz. Surprisingly, the MCD orbital sum rule is found to be valid to within (510)%. Finally, the results suggest possible solutions to several problems faced in applying the MCD sum rule to measure Lz.
AB - X-ray magnetic circular dichroism (MCD) spectra and orbital angular momentum, Lz, for transition metal bulk and surfaces were studied for both ground state and core hole excitations using a highly precise local density approach. For Fe(001), we predict a double peak structure in both the MCD and total absorption spectra and a strong enhancement of Iz. Surprisingly, the MCD orbital sum rule is found to be valid to within (510)%. Finally, the results suggest possible solutions to several problems faced in applying the MCD sum rule to measure Lz.
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U2 - 10.1103/PhysRevLett.71.3581
DO - 10.1103/PhysRevLett.71.3581
M3 - Article
C2 - 10055013
AN - SCOPUS:0001181313
SN - 0031-9007
VL - 71
SP - 3581
EP - 3584
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
ER -