Layer-Specific Probing of Ultrafast Spin Dynamics in Multilayered Magnets with Visible Light
In this study GdFeCo-multilayered structures are investigated by means of static magneto-optical measurements and time-resolved pump-probe spectroscopy. Fluence dependent time-resolved measurements demonstrate a complex behavior of the magnetization and the possibility of magnetization reversal. A method to distinguish contributions from different layers is proposed.
KeywordsCoercive Field Magnetization Reversal Kerr Rotation Multiple Scattering Effect Multilayered Magnet
Unable to display preview. Download preview PDF.
- 1.E. Beaurepaire, J.-C. Merle, A. Daunois, and J.-Y. Bigot, “Ultrafast Spin Dynamics in Ferromagnetic Nickel” PRL 76, 4250 (1996).Google Scholar
- 2.C. D. Stanciu, F. Hansteen, A. V. Kimel, A. Kirilyuk, A. Tsukamoto, A. Itoh, and Th. Rasing, “All-Optical Magnetic Recording with Circularly Polarized Light” PRL 99, 047601 (2007).Google Scholar
- 3.M. Mansuripur, “The Physical Principles of Magneto-optical Recording”, Cambridge University Press (1995).Google Scholar
- 4.R. Medapalli, I. Razdolski, M. Savoini, A. R. Khorsand, A. Kirilyuk, A. V. Kimel, and Th. Rasing, “Efficiency of ultrafast laser-induced demagnetization in GdxFe100 − x−yCoy alloys” PRB 86, 054442 (2012).Google Scholar
- 5.A. R. Khorsand, M. Savoini, A. Kirilyuk, A. V. Kimel, A. Tsukamoto, A. Itoh, and Th. Rasing, “Element-Specific Probing of Ultrafast Spin Dynamics in Multisublattice Magnets with Visible Light” PRL 110, 107205 (2013).Google Scholar