Low temperature scanning tunneling microscopy and spectroscopy investigation of FeSe$_{\mathrm{1-x}}$S$_{\mathrm{x}}$ single crystals

ORAL

Abstract

FeSe has the simplest crystal structure among the Fe-based superconductors, and this very simplicity could provide the most appropriate venue of understanding the superconducting mechanism of Fe-based superconductors. Low temperature scanning tunneling microscopy and spectroscopy measurements on high quality FeSe and S substituted FeSe single crystals will be presented. Multiband superconductivity, symmetry of the order parameter, role of disorder and vortex matter in this system will be discussed.

*Work at Temple University was supported by the U.S. Department of Energy, Oce of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award DE-SC0004556.

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Authors

  • C. Di Giorgio

    • Physics Department, Temple University, Philadelphia (PA), USA

  • A. Putilov

    • Physics Department, Temple University, Philadelphia (PA), USA

  • E. Lechner

    • Physics Department, Temple University, Philadelphia (PA), USA

  • D. Trainer

    • Physics Department, Temple University, Philadelphia (PA), USA

  • O.S. Volkova

    • Phys. Faculty, Moscow State University; Inst. of Phys. and Tech., Ural Federal University; National University of Science and Technology MISiS, Russia

  • A.N. Vasiliev

    • Phys. Faculty, Moscow State University; Inst. of Phys. and Tech., Ural Federal University; National University of Science and Technology MISiS, Russia

  • D. Chareev

    • Phys. Faculty, Moscow State University; Inst. of Experimental Minerology, Russian Academy of Sciences, Russia

  • G. Karapetrov

    • Physics Department, Drexel University, Philadelphia (PA), USA

  • J.F. ZASADZINSKI

    • Physics Department, Illinois Institute of Technology, Chicago (IL), USA

  • M. Iavarone

    • Physics Department, Temple University, Philadelphia (PA), USA