Molecules (Oct 2021)

Magnetization Switching in the GdFeCo Films with In-Plane Anisotropy via Femtosecond Laser Pulses

  • Daria O. Ignatyeva,
  • Pavel O. Kapralov,
  • Kiran Horabail Prabhakara,
  • Hiroki Yoshikawa,
  • Arata Tsukamoto,
  • Vladimir I. Belotelov

DOI
https://doi.org/10.3390/molecules26216406
Journal volume & issue
Vol. 26, no. 21
p. 6406

Abstract

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Ferrimagnetic rare-earth substituted metal alloys GdFeCo were shown to exhibit the phenomenon of all-optical magnetization switching via femtosecond laser pulses. All-optical magnetization switching has been comprehensively investigated in out-of-plane magnetized GdFeCo films; however, the films with the in-plane magnetic anisotropy have not yet been studied in detail. We report experimental observations of the magnetization switching of in-plane magnetized GdFeCo films by means of the femtosecond laser pulses in the presence of a small magnetic field of about 40 µT. The switching effect has a threshold both in the applied magnetic field and in the light intensity.

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