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Unusual band renormalization in the simplest iron-based superconductor FeSe1x

J. Maletz, V. B. Zabolotnyy, D. V. Evtushinsky, S. Thirupathaiah, A. U. B. Wolter, L. Harnagea, A. N. Yaresko, A. N. Vasiliev, D. A. Chareev, A. E. Böhmer, F. Hardy, T. Wolf, C. Meingast, E. D. L. Rienks, B. Büchner, and S. V. Borisenko
Phys. Rev. B 89, 220506(R) – Published 18 June 2014
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Abstract

The electronic structure of the iron chalcogenide superconductor FeSe1x was investigated by high-resolution angle-resolved photoemission spectroscopy (ARPES). The results were compared to DFT calculations showing some significant differences between the experimental electronic structure of FeSe1x, DFT calculations, and existing data on FeSexTe1x. The bands undergo a pronounced orbital-dependent renormalization, different from what was observed for FeSexTe1x and any other pnictides.

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  • Received 5 June 2013
  • Revised 2 June 2014

DOI:https://doi.org/10.1103/PhysRevB.89.220506

©2014 American Physical Society

Authors & Affiliations

J. Maletz1, V. B. Zabolotnyy1, D. V. Evtushinsky1, S. Thirupathaiah1, A. U. B. Wolter1, L. Harnagea1, A. N. Yaresko2, A. N. Vasiliev3,4, D. A. Chareev5,6, A. E. Böhmer7, F. Hardy7, T. Wolf7, C. Meingast7, E. D. L. Rienks8, B. Büchner1,9, and S. V. Borisenko1

  • 1Institute for Solid State Research, IFW Dresden, P.O. Box 270116, D-01171 Dresden, Germany
  • 2Max Planck Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
  • 3Low Temperature Physics and Superconductivity Department, Physics Faculty, Moscow State University, Moscow 119991, Russia
  • 4Theoretical Physics and Applied Mathematics Department, Institute of Physics and Technology, Ural Federal University, 620002 Ekaterinburg, Russia
  • 5National Research University Higher School of Economics, 20 Myasnitskaya Ulitsa, Moscow 101000, Russia
  • 6Institute of Experimental Mineralogy, Russian Academy of Sciences, Chernogolovka, Moscow Region 142432, Russia
  • 7Institute für Festkörperphysik, Karlsruhe Institute für Technologie, 76021 Karlsruhe, Germany
  • 8Helmholtz-Zentrum Berlin, Albert-Einstein-Strasse 15, 12489 Berlin, Germany
  • 9Institut für Festkörperphysik, Technische Universität Dresden, D-01171 Dresden, Germany

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Issue

Vol. 89, Iss. 22 — 1 June 2014

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