Origin of spin-orbit splitting for monolayers of au and ag on w(110) and mo(110).
Spin-orbit coupling can give rise to spin-split electronic states without a ferromagnet or an external magnetic field. We create large spin-orbit splittings in a Au and Ag monolayer on W(110) and show that the size of the splitting does not depend on the atomic number of the Au or Ag overlayer but of the W substrate. Spin- and angle-resolved photoemission and Fermi-surface scans reveal that the overlayer states acquire spin polarization through spin-dependent overlayer-substrate hybridization.
Shikin
A M
AM
Institute of Physics, St. Petersburg State University, St. Petersburg, 198504, Russia.
Varykhalov
A
A
Prudnikova
G V
GV
Usachov
D
D
Adamchuk
V K
VK
Yamada
Y
Y
Riley
J D
JD
Rader
O
O