Interplay of magnetism, superconductivity, and topology in the rare-earth diantimonides

ORAL

Abstract

Rare-earth diantimonides RESb2 cover a wide range of physics including superconductivity, magnetism and non-trivial topology. Here, we analyze the interplay between these features in different members of this material class. Sizeable single crystals were grown from self-flux. The materials were characterized by magnetization, specific heat, and electrical transport measurements. DFT calculations were used to elucidate their electronic structure, allowing us to investigate the connections between the presence of topologically nontrivial bands near the Fermi level, and the stability of superconducting states. The RE magnetism provides an additional control of superconductivity, emphasizing that the diantimonides are a versatile ground for investigation of electronic correlations in the presence of novel topological phases.

*We acknowledge the support of the Natural Sciences and Engineering Research Council of Canada (NSERC).

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Presenters

  • Jörn Bannies

    • University of British Columbia

Authors

  • Jörn Bannies

    • University of British Columbia

  • Mohamed Oudah

    • University of British Columbia
    • Max Planck Institute for Solid State Research, Stuttgart, Germany

  • Douglas A. Bonn

    • Quantum Matter Institute, University of British Columbia
    • University of British Columbia
    • Stewart Blusson Quantum Matter Institute, University of British Columbia, Vancouver, Canada

  • Sarah A Burke

    • University of British Columbia

  • Meigan Aronson

    • University of British Columbia
    • Physics and Astronomy, University of British Columbia