ARPES studies on FeTe$_{1-x}$Se$_{x}$ iron chalcogenides epitaxial thin films

ORAL

Abstract

The physics of iron-based chalcogenides raises fundamental questions on the interplay of magnetic order and electron pairing at the origin of the superconducting state. We have performed angle-resolved photemission spectroscopy (ARPES) studies on high-quality epitaxial thin films of FeTe$_{1-x}$Se$_{x}$, grown by \textit{in situ} pulsed laser deposition (PLD) on beamline 7.0.1 at the ALS. Specifically, we are able to show the evolution of the band structure as a function of x. We discuss our experimental results in comparison to the available theoretical band calculations.

–

Authors

  • Davide Innocenti

    Advanced Light Source and University of Rome ``Tor Vergata'', ALS and University of Rome ``Tor Vergata''

  • Luca Moreschini

    ALS, Advanced Light Source

  • Young Jun Chang

    ALS and Fritz-Haber-Institut

  • A. Walter

    ALS and Fritz-Haber-Institut, FHI, Max-Planck-Gesellschaft and ALS, E. O. Lawrence Berkeley Laboratory

  • Aaron Bostwick

    ALS

  • Daniele Di Castro

    University of Rome ``Tor Vergata''

  • Antonello Tebano

    University of Rome ``Tor Vergata''

  • Pier Gianni Medaglia

    University of Rome ``Tor Vergata''

  • Emilio Bellingeri

    CNR-SPIN Genova

  • Ilaria Pallecchi

    CNR-SPIN Genova

  • Carlo Ferdeghini

    CNR-SPIN Genova

  • Giuseppe Balestrino

    University of Rome ``Tor Vergata''

  • Eli Rotenberg

    ALS, LBL Berkeley, Lawrence Berkeley National Laboratory