We have directly characterized the spin-polarized energy-band structures of Sb(111) near the Fermi level by spin- and angle-resolved photoemission spectroscopy. The results clearly indicate that the energy bands are spin-split due to the spin-orbit coupling and the broken space inversion symmetry.
Direct evidence of spin-polarized band structure of Sb(111) surface
T. Kadono, K. Miyamoto, R. Nishimura, K. Kanomaru, S. Qiao, K. Shimada, H. Namatame, A. Kimura, M. Taniguchi; Direct evidence of spin-polarized band structure of Sb(111) surface. Appl. Phys. Lett. 22 December 2008; 93 (25): 252107. https://doi.org/10.1063/1.3049610
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