Renormalization group study of superconductivity in Nickelates

ORAL

Abstract

Since the discovery of high Tc superconductivity in the cuprates by Bednorz and Mueller, materials bearing similarities to copper oxide compounds have emerged as a contemporary research topic of high interest.
Although LaNiO3/LaAlO3 shares many similarities with the cuprates, it exhibits no superconducting phase down to lowest temperatures.
In this talk we sketch a simple two-band model of a d7 Nickelate-compound and argue why, based on renormalization group calculations competing superconducting ordering propensities make these systems belong to the class of low-Tc materials.

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Presenters

  • Michael Klett

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

Authors

  • Michael Klett

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

  • Tilman Schwemmer

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

  • 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

  • David Riegler

    Institute for theoretical physics, University of Wuerzburg, Institute for Theoretical Physics, University of Wuerzburg

  • 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