Combined ARPES and DFT+eDMFT investigation on the effects of strain & doping in Fe(Se,Te) systems.

ORAL

Abstract

Recently, the effect of doping in the Fe(Se,Te) systems has been a point of interest in the literature as Fe(Se,Te) system can potentially exhibit topological superconductivity at relatively high temperatures. We use a combination of molecular beam epitaxial (MBE) growth, time and angle-resolved-photoemission-spectroscopy (trARPES), and ab initio embedded dynamical mean-field theory (eDMFT) to understand the correlated electronic and vibrational properties of Fe(Se,Te) systems under the applied in-plane strain. Using eDMFT, we compute structural parameters for various FeSe_xTe_{1-x} systems including the chalcogen heights and important phonon frequencies. eDMFT computed orbital-resolved spectral functions are found to be in excellent agreement with the ARPES data.

* This research was supported by the Air Force Office of Scientific Research of the Department of Defense under the award number FA9550-23-1-0498 of the DEPSCoR program. We also acknowledge the support from National Science Foundation Grant No. DMR-2011854 and DOE BES MSE and the Advanced Photon Source.

–

Publication: No Publications have arisen from this work as of yet.

Presenters

  • Christopher L Jacobs

    West Virginia University

Authors

  • Christopher L Jacobs

    West Virginia University

  • Haoran Lin

    Pritzker School of Molecular Engineering, the University of Chicago, University of Chicago

  • Chenhui Yan

    University of Chicago

  • Qiang Gao

    The University of Chicago, Pritzker School of Molecular Engineering, the University of Chicago, University of Chicago

  • Gabriele Berruto

    Pritzker School of Molecular Engineering, the University of Chicago, University of Chicago, the University of Chicago

  • Yan Li

    Argonne National Laboratory

  • Hao Zheng

    Argonne National Laboratory

  • Hua Zhou

    Argonne National Laboratory

  • Zhan Zhang

    Argonne National Laboratory

  • Yue Cao

    Argonne National Laboratory

  • Shuolong Yang

    The University of Chicago, Pritzker School of Molecular Engineering, the University of Chicago, University of Chicago

  • Subhasish Mandal

    West Virginia University