TY - JOUR AU - Hirahara, T. AU - Miyamoto, K AU - Matsuda, I. AU - Kadono, T. AU - Kimura, A AU - Nagao, T. AU - Bihlmayer, G. AU - Chulkov, E. V. AU - Qiao, S. AU - Shimada, K AU - Namatame, H. AU - Taniguchi, M. AU - Hasegawa, S. TI - Direct observation of spin splitting in bismuth surface states JO - Physical review / B VL - 76 IS - 15 SN - 1098-0121 CY - College Park, Md. PB - APS M1 - PreJuSER-58492 SP - 153305 PY - 2007 N1 - Record converted from VDB: 12.11.2012 AB - The electronic structure of ultrathin Bi(001) films on Si(111)-7x7 was studied by spin and angle-resolved photoemission spectroscopy. We directly observed a clear momentum-dependent spin splitting and polarization of the surface-state bands. The spin structure was antisymmetric with respect to the (Gamma) over bar point as predicted by theory, and the obtained in-plane spin polarization was as high as +/- 0.5. The qualitative features of the observed spin polarization are discussed in comparison with the spin-polarized band structure obtained by first-principles calculations. KW - J (WoSType) LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000250620400013 DO - DOI:10.1103/PhysRevB.76.153305 UR - https://juser.fz-juelich.de/record/58492 ER -