title: Spin polarized surface resonance bands in single layer Bi on Ge(1 1 1).
abstract: The spin features of surface resonance bands in single layer Bi on Ge(1 1 1) are studied by means of spin- and angle-resolved photoemission spectroscopy and inverse photoemission spectroscopy. We characterize the occupied and empty surface states of Ge(1 1 1) and show that the deposition of one monolayer of Bi on Ge(1 1 1) leads to the appearance of spin-polarized surface resonance bands. In particular, the C 3v symmetry, which Bi adatoms adopt on Ge(1 1 1), allows for the presence of Rashba-like occupied and unoccupied electronic states around the [Formula: see text] point of the Bi surface Brillouin zone with a giant spin-orbit constant [Formula: see text] eV · Å.
authors.affiliation: LNESS-Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy.
authors.forename: F
authors.initials: F
authors.lastname: Bottegoni
authors.forename: A
authors.initials: A
authors.lastname: Calloni
authors.forename: G
authors.initials: G
authors.lastname: Bussetti
authors.forename: A
authors.initials: A
authors.lastname: Camera
authors.forename: C
authors.initials: C
authors.lastname: Zucchetti
authors.forename: M
authors.initials: M
authors.lastname: Finazzi
authors.forename: L
authors.initials: L
authors.lastname: Duò
authors.forename: F
authors.initials: F
authors.lastname: Ciccacci