Fermi surface instabilities of spin-orbit-coupled metals

ORAL

Abstract

The pursuit of novel phases in correlated electron systems, such as possibly topological instances of unconventional superconductivity, must consider multiple energy scales including interaction strength, electronic band width, and, in particular, spin-orbit coupling (SOC). While density functional theory and related ab initio techniques can provide a detailed description of a materials electronic structure that can carefully account for the effects of SOC, it is necessary to additionally refine quantum many body techniques to study Fermi surface instabilities in the presence of SOC. Starting from a picture of itinerant electrons, we study the effect of electronic correlations on the Fermi surface via renormalization group techniques. Combining ab initio electronic structures with perturbative and functional renormalization group calculations, we develop the toolbox to analyse a plethora of symmetry breaking phases arising from the interplay of SOC, fermi surface topology, and electronic correlations.

*This work is supported by ERC-StG-TOPOLECTRICS-336012 and DFG-SFB 1170 (Project B04)

–

Presenters

  • Tilman Schwemmer

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • Institute for Theoretical Physics, University of Wuerzburg

Authors

  • Tilman Schwemmer

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • Institute for Theoretical Physics, University of Wuerzburg

  • Domenico di Sante

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg

  • mario Fink

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg

  • Xianxin Wu

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • Physics, University of Wurzburg
    • Institute for Theoretical Physics and Astrophysics, Julius-Maximilians University of Wurzburg, Am Hubland, D-97074 Wurzburg, Germany
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg
    • Institute of Physics, Chinese Academy of Sciences
    • Univ of Wuerzburg
    • Institute for Theoretical Physics, University of Wuerzburg
    • Univ of Wurzburg

  • Werner R Hanke

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg

  • Ronny Thomale

    • Institute for Theoretical Physics and Astrophysics, University of Wuerzburg
    • University of Wurzburg
    • Institute for theoretical physics, University of Wuerzburg
    • Institute for Theoretical Physics and Astrophysics, University Wuerzburg
    • Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg
    • Univ of Wuerzburg
    • Institute for Theoretical Physics and Astrophysics, University of Würzburg
    • Institute for Theoretical Physics, University of Wuerzburg
    • Univ of Wurzburg