Nature Communications (Nov 2022)

Helicity dependent photoresistance measurement vs. beam-shift thermal gradient

  • Haozhe Yang,
  • Eva Schmoranzerová,
  • Pyunghwa Jang,
  • Jayshankar Nath,
  • Thomas Guillet,
  • Isabelle Joumard,
  • Stéphane Auffret,
  • Matthieu Jamet,
  • Petr Němec,
  • Gilles Gaudin,
  • Ioan-Mihai Miron

DOI
https://doi.org/10.1038/s41467-022-34198-5
Journal volume & issue
Vol. 13, no. 1
pp. 1 – 7

Abstract

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Many recent studies have explored the response of magnetic systems to circularly polarised light. To achieve this, typically experiments use a birefringent crystal. Here, Yang et al show that any small error in the alignment of the crystal can result in a beam shift, and this shift can lead to spurious signals similar yet unrelated to the electron spin.