2012/04/23 by Z.-H. Pan, E. Vescovo, Pan, Z. -H. +21
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #FOS: Physical sciences #Magnetic properties of thin films #Materials Science (cond-mat.mtrl-sci) #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Strongly Correlated Electrons (cond-mat.str-el) #Topological Materials and Phenomena #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.48550/arxiv.1204.5263
openalex publication_date 2012/04/23 · arxiv created 2012/04/24 · arxiv updated 2012/04/25 · openalex created_date 2022/10/03 · openalex updated_date 2026/07/28
Heavily electron-doped surfaces of Bi2Se3 have been studied by spin and angle resolved photoemission spectroscopy. Upon doping, electrons occupy a series of \bf k-split pairs of states above the topological surface state. The \bf k-splitting originates from the large spin-orbit coupling and results in a Rashba-type behavior, unequivocally demonstrated here via the spin analysis. The spin helicities of the lowest laying Rashba doublet and the adjacent topological surface state alternate in a left-right-left sequence. This spin configuration sets constraints to inter-band scattering channels opened by electron doping. A detailed analysis of the scattering rates suggests that intra-band scattering dominates with the largest effect coming from warping of the Fermi surface.