title: Spin-resolved electronic structure of nanoscale cobalt islands on Cu(111).
abstract: Using spin-polarized scanning tunneling spectroscopy, we reveal how the standing wave patterns of confined surface state electrons on top of nanometer-scale ferromagnetic Co islands on Cu(111) are affected by the spin character of the responsible state, thus experimentally confirming a very recent theoretical result. Furthermore, at the rim of the islands a spin-polarized state is found giving rise to enhanced zero bias conductance. Its polarization is opposite to that of the islands. The experimental findings are in accordance with ab initio spin-density calculations.
authors.affiliation: Institute of Applied Physics, University of Hamburg, Jungiusstrasse 11, D-20355 Hamburg, Germany.
authors.forename: O
authors.initials: O
authors.lastname: Pietzsch
authors.forename: S
authors.initials: S
authors.lastname: Okatov
authors.forename: A
authors.initials: A
authors.lastname: Kubetzka
authors.forename: M
authors.initials: M
authors.lastname: Bode
authors.forename: S
authors.initials: S
authors.lastname: Heinze
authors.forename: A
authors.initials: A
authors.lastname: Lichtenstein
authors.forename: R
authors.initials: R
authors.lastname: Wiesendanger