Nature Communications (Jul 2018)

Signatures of transient Wannier-Stark localization in bulk gallium arsenide

  • C. Schmidt,
  • J. Bühler,
  • A.-C. Heinrich,
  • J. Allerbeck,
  • R. Podzimski,
  • D. Berghoff,
  • T. Meier,
  • W. G. Schmidt,
  • C. Reichl,
  • W. Wegscheider,
  • D. Brida,
  • A. Leitenstorfer

DOI
https://doi.org/10.1038/s41467-018-05229-x
Journal volume & issue
Vol. 9, no. 1
pp. 1 – 8

Abstract

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In strong enough electric fields the non-linear response of electrons in crystals is expected to lead to spatial localization but so far this has only been seen in artificial structures. Schmidt et al. present evidence of this Wannier-Stark localization effect in bulk GaAs driven by intense mid-infrared pulses.