Near-Fermi electronic structure of La$_{2-2x}$Sr$_{1+2x}$Mn$_{2}$O$_{7}$ revealed by ARPES

ORAL

Abstract

Angle-resolved photoemission experiments were performed on the bi-layer manganite La$_{2-2x}$Sr$_{1+2x}$Mn$_{2}$O$_{7}$ as a function of doping and temperature. High resolution and sensitivity allows us to observe the fine details including bi-layer splitting, dispersion kinks, electron-phonon coupling, and pseudogaps. We discuss new insights into the underlying physics of these compounds, as well as a comparison of some of these properties to what is observed in the cuprates.

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Authors

  • Z. Sun

  • J. F. Douglas

  • D. S. Dessau

    • University of Colorado, Boulder, CO 80309

  • Y. -D. Chuang

  • A. V. Fedorov

    • Lawrence Berkeley National Lab, Berkeley, CA 94720

  • H. Lin

  • M. Lindroos

  • S. Sahrakorpi

  • R. S. Markiewicz

  • A. Bansil

    • Northeastern University, Boston, MA 02115

  • H. Zheng

  • J. F. Mitchell

    • Argonne National Laboratory, Argonne, IL 60439

  • T. Kimura

  • Y. Tokura

    • University of Tokyo, Tokyo, Japan 113-8656