Point Contact Study of FeTe<sub>1-x</sub>Se<sub>x</sub> in Magnetic Fields

ORAL

Abstract

The material FeTe1-xSex provides an easy platform to study the Iron-based superconductors due to its simple crystal structure and relatively high superconducting transition temperature. In addition, some recent ARPES and STM studies suggest that FeTe0.55Se0.45 may be topologically non-trivial. With this in mind, we use Point-Contact Differential Conductance studies to further investigate this material. We find a “Cusp-like” Zero Bias Conductance Peak (ZBCP) emerges below Tc. The magnetic field dependence of this ZBCP is investigated under different field orientations in order to determine its physical origin.

*National Science Foundation Award #: 1410846

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Presenters

  • Mason Gray

    • Physics, Boston College

Authors

  • Mason Gray

    • Physics, Boston College

  • Ryan O'Connor

    • Physics, Boston College

  • Ruidan Zhong

    • Brookhaven National Laboratory
    • Brookhaven National Labs
    • Brookhaven Natl Lab
    • Brookhaven National Lab
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory

  • Genda Gu

    • Brookhaven National Laboratory
    • Brookhaven National Labs
    • Condensed Matter Physics and Materials Science Division, Brookhaven National Laboratory
    • Condensed Matter Physics and Material Science Department, Brookhaven National Laboratory
    • Condensed Matter &materials Science, Brookhaven Natl Lab
    • Brookhaven Natl Lab
    • Condensed Matter Physics and Materials Science, Brookhaven National Laboratory
    • Brookhaven Natl. Lab
    • Brookhaven National Lab
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory
    • brookhaven national laboratory

  • Kenneth Burch

    • Boston Coll
    • Department of Physics, Boston Coll
    • Physics, Boston College