title: Giant Rashba-Type Spin Splitting in Ferroelectric GeTe(111).
abstract: Photoelectron spectroscopy in combination with piezoforce microscopy reveals that the helicity of Rashba bands is coupled to the nonvolatile ferroelectric polarization of GeTe(111). A novel surface Rashba band is found and fingerprints of a bulk Rashba band are identified by comparison with density functional theory calculations.
authors.affiliation: II. Institute of Physics B and JARA-FIT, RWTH Aachen University, 52074, Aachen, Germany.
authors.forename: Marcus
authors.initials: M
authors.lastname: Liebmann
authors.affiliation: Dipartimento di Fisica, Politecnico di Milano and IFN-CNR, Via Colombo 81, 20133, Milano, Italy.
authors.forename: Christian
authors.initials: C
authors.lastname: Rinaldi
authors.affiliation: Consiglio Nazionale delle Ricerche CNR-SPIN, UOS L'Aquila, Via Vetoio 10, 67100, L'Aquila, Italy.|Department of Physical and Chemical Sciences, University of L'Aquila, Via Vetoio 10, 67100, L'Aquila, Italy.
authors.forename: Domenico
authors.initials: D
authors.lastname: Di Sante
authors.affiliation: II. Institute of Physics B and JARA-FIT, RWTH Aachen University, 52074, Aachen, Germany.
authors.forename: Jens
authors.initials: J
authors.lastname: Kellner
authors.affiliation: II. Institute of Physics B and JARA-FIT, RWTH Aachen University, 52074, Aachen, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Pauly
authors.affiliation: Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117, Berlin, Germany.
authors.forename: Rui Ning
authors.initials: RN
authors.lastname: Wang
authors.affiliation: Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117, Berlin, Germany.
authors.forename: Jos Emiel
authors.initials: JE
authors.lastname: Boschker
authors.affiliation: Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117, Berlin, Germany.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Giussani
authors.affiliation: Dipartimento di Fisica, Politechnico di Milano, Via Colombo 81, 20133, Milano, Italy.
authors.forename: Stefano
authors.initials: S
authors.lastname: Bertoli
authors.affiliation: Dipartimento di Fisica, Politechnico di Milano, Via Colombo 81, 20133, Milano, Italy.
authors.forename: Matteo
authors.initials: M
authors.lastname: Cantoni
authors.affiliation: Dipartimento di Fisica, Politechnico di Milano, Via Colombo 81, 20133, Milano, Italy.
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Baldrati
authors.affiliation: Dipartimento di Fisica, Politechnico di Milano, Via Colombo 81, 20133, Milano, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Asa
authors.affiliation: Consiglio Nazionale delle Ricerche, CNR - IOM, Laboratorio TASC, 34149, Trieste, Italy.
authors.forename: Ivana
authors.initials: I
authors.lastname: Vobornik
authors.affiliation: Consiglio Nazionale delle Ricerche, CNR - IOM, Laboratorio TASC, 34149, Trieste, Italy.
authors.forename: Giancarlo
authors.initials: G
authors.lastname: Panaccione
authors.affiliation: Physikalische und Theoretische Chemie, Freie Universität Berlin, Takustraße 3, 14195, Berlin, Germany.
authors.forename: Dmitry
authors.initials: D
authors.lastname: Marchenko
authors.affiliation: Helmholtz-Zentrum für Materialien und Energie, Elektronenspeicherring BESSY II, Albert-Einstein-Strasse 15, 12489, Berlin, Germany.
authors.forename: Jaime
authors.initials: J
authors.lastname: Sánchez-Barriga
authors.affiliation: Helmholtz-Zentrum für Materialien und Energie, Elektronenspeicherring BESSY II, Albert-Einstein-Strasse 15, 12489, Berlin, Germany.
authors.forename: Oliver
authors.initials: O
authors.lastname: Rader
authors.affiliation: Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, 10117, Berlin, Germany.
authors.forename: Raffaella
authors.initials: R
authors.lastname: Calarco
authors.affiliation: Consiglio Nazionale delle Ricerche CNR-SPIN, UOS L'Aquila, Via Vetoio 10, 67100, L'Aquila, Italy.
authors.forename: Silvia
authors.initials: S
authors.lastname: Picozzi
authors.affiliation: Dipartimento di Fisica, Politecnico di Milano and IFN-CNR, Via Colombo 81, 20133, Milano, Italy.
authors.forename: Riccardo
authors.initials: R
authors.lastname: Bertacco
authors.affiliation: II. Institute of Physics B and JARA-FIT, RWTH Aachen University, 52074, Aachen, Germany.
authors.forename: Markus
authors.initials: M
authors.lastname: Morgenstern
keywords: Rashba effect; ferroelectricity; photoelectron spectroscopy; piezoforce microscopy