Point Contact Study of FeTe1-xSex 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.

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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