Distinguishing Intrinsic from Extrinsic Effects in Time-resolved Photoemission

ORAL

Abstract

Time- and angle-resolved photoemission is becoming established as a powerful tool for the study of nonequilibrium electron dynamics in quantum materials. With the proliferation of this technique it is important to develop a robust understanding of the method itself. I will discuss how electron dynamics that are intrinsic to the sample can be distinguished from generic electron dynamics that are extrinsic. This includes apparent binding energy shifts due to surface photovoltage, and shifts and broadening due to pump-induced vacuum space charge.

*This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Materials Sciences and Engineering Division.

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Presenters

  • Patrick Kirchmann

    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SIMES, SLAC - Natl Accelerator Lab

Authors

  • Patrick Kirchmann

    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SIMES, SLAC - Natl Accelerator Lab

  • Heike Pfau

    • Advanced Light Source, Lawrence Berkeley National Laboratory
    • Lawrence Berkeley National Laboratory

  • Jonathan A Sobota

    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SIMES, SLAC - Natl Accelerator Lab

  • Hadas Soifer

    • School of Physics and Astronomy, Tel Aviv University

  • Nicolas Gauthier

    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SIMES, SLAC - Natl Accelerator Lab

  • Kejun Xu

    • Stanford University
    • Geballe Laboratory for Advanced Materials, Stanford University
    • Stanford Univ

  • Hongyu Xiong

    • Geballe Laboratory for Advanced Materials, Stanford University

  • Shujie Tang

    • Standford
    • Stanford University
    • Stanford Univeristy
    • Geballe Laboratory for Advanced Materials, Stanford University

  • Costel R. Rotundu

    • Stanford Institute of Materials and Energy Science, SLAC National Accelerator Laboratory
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SIMES, SLAC - Natl Accelerator Lab

  • Zhixun Shen

    • Standford
    • Stanford University
    • Stanford Univeristy
    • Applied Physics, Stanford University
    • SLAC National Accelerator Laboratory
    • Geballe Laboratory for Advanced Materials, Department of Applied Physics, Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • SIMES, SLAC - Natl Accelerator Lab
    • Stanford Univ