Electron-Phonon Coupling in Doped p-Terphenyl

ORAL

Abstract

Potassium-doped para-terphenyl has been reported to be a high critical temperature superconductor. {1,2,3} As a necessary step towards understanding this novel superconductivity, we study electronic structure and electron-phonon coupling in electron doped p-terphenyl using density functional (pertubation) theory calculations for both isolated molecules and extended crystals. Migdal-Elaishberg and dynamical mean field methods are then used to analyse quasiparticle properties and superconducting instabilities. The relevance of polaron physics to this superconductor will also be discussed.
{1} Ren-Shu Wang, Yun Gao, Zhong-Bing Huang and Xiao-Jia Chen. Arxiv: 1703.06641
{2} Ren-Shu Wang, Yun Gao, Zhong-Bing Huang and Xiao-Jia Chen. Arxiv: 1703.05804
{3} Haoxiang Li, Xiaoqing Zhou, Stephen Parham, Thomas Nummy, Justin Griffith, Kyle Gordon, Eric L. Chronister and Daniel. S. Dessau. Arxiv: 1704.04230

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Presenters

  • Jia Chen

    Department of Applied Physics and Applied Math, Columbia University

Authors

  • Jia Chen

    Department of Applied Physics and Applied Math, Columbia University

  • Andrew Millis

    Columbia Univ, Columbia University, Department of Physics, Columbia University and Center for Computational Quantum Physics, The Flatiron Institute, Department of Physics, Columbia University; Center for Computational Quantum Physics, The Flatiron Institute, Center for Computational Quantum Physics, The Flatiron Institute, Center for Computational Quantum Physics, Flatiron Institute, Department of Physics, Columbia University, Physics, Columbia Univ and Flatiron Institute Center for Computational Quantum Physics

  • David Reichman

    Deparement of Chemistry, Columbia University, Columbia University