TY - JOUR
T1 - Resonant photoemission and spin polarization of Co1-xFe xS2
AU - Zhang, Xin
AU - Wu, Ning
AU - Manno, Michael
AU - Leighton, C.
AU - Vescovo, Elio
AU - Dowben, P. A.
PY - 2013/1/9
Y1 - 2013/1/9
N2 - The valence band occupied state electronic structure of Co1-xFexS2 in the region of the Fe/Co 3d bands has been investigated using photoemission and spin-polarized photoemission. As measured by using spin-polarized ultraviolet photoemission, the surface Fermi level spin polarization of Co1-xFexS2 thin films at 50 K, specifically at x = 0, 0.05, 0.10 and 0.15, was found to be much reduced compared to that of the bulk. The spin polarization nonetheless increases with Fe concentration. The resonant photoemission spectroscopy provides evidence that S bands have a strong resonance at the photon energy corresponding to the Co 2p core level, indicating strong hybridization between Co and S bands in Co1-xFexS2 (at small x). Similar evidence exists for Fe hybridization with the S bands.
AB - The valence band occupied state electronic structure of Co1-xFexS2 in the region of the Fe/Co 3d bands has been investigated using photoemission and spin-polarized photoemission. As measured by using spin-polarized ultraviolet photoemission, the surface Fermi level spin polarization of Co1-xFexS2 thin films at 50 K, specifically at x = 0, 0.05, 0.10 and 0.15, was found to be much reduced compared to that of the bulk. The spin polarization nonetheless increases with Fe concentration. The resonant photoemission spectroscopy provides evidence that S bands have a strong resonance at the photon energy corresponding to the Co 2p core level, indicating strong hybridization between Co and S bands in Co1-xFexS2 (at small x). Similar evidence exists for Fe hybridization with the S bands.
UR - http://www.scopus.com/inward/record.url?scp=84870860074&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84870860074&partnerID=8YFLogxK
U2 - 10.1088/0953-8984/25/1/012001
DO - 10.1088/0953-8984/25/1/012001
M3 - Article
C2 - 23160359
AN - SCOPUS:84870860074
SN - 0953-8984
VL - 25
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 1
M1 - 012001
ER -