Abstract

Using spectroscopical magneto-optical methods, we are able to disentangle the contributions of the different layers in the net magnetization of a GdxFeCo/SiN/GdyFeCo heterostructure. By static magneto-optical measurements, time-resolved magneto-optical Kerr effect spectroscopy and temperature and laser fluence dependence study of the magnetization dynamics, we study the laser-induced magnetization dynamics and reversal in this multilayer system for each layer separately.

Highlights

  • able to disentangle the contributions of the different layers in the net magnetization

  • this TM plays an important role in the magnetization dynamics

  • It was in fact demonstrated6,7

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