Nature Communications (Oct 2022)

Field-induced ultrafast modulation of Rashba coupling at room temperature in ferroelectric α-GeTe(111)

  • Geoffroy Kremer,
  • Julian Maklar,
  • Laurent Nicolaï,
  • Christopher W. Nicholson,
  • Changming Yue,
  • Caio Silva,
  • Philipp Werner,
  • J. Hugo Dil,
  • Juraj Krempaský,
  • Gunther Springholz,
  • Ralph Ernstorfer,
  • Jan Minár,
  • Laurenz Rettig,
  • Claude Monney

DOI
https://doi.org/10.1038/s41467-022-33978-3
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 6

Abstract

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The ferroelectric material α-GeTe(111) is an excellent playground for spin-to charge conversion due to its strong Rashba coupling. Here, the authors reveal an ultrafast modulation of its Rashba coupling on the femtosecond timescale.