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4 October 2022 Ultrafast optically-induced spin transfer in ferromagnetic alloys and compounds (Conference Presentation)
Stefan Mathias
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Proceedings Volume PC12205, Spintronics XV; PC122050A (2022) https://doi.org/10.1117/12.2634137
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
The ultimate speed limit for all-optical spin manipulation requires control schemes on the timescale of the laser excitation pulse. In our work, we provide experimental evidence of such a direct, ultrafast and coherent spin transfer between distinct magnetic subsystems in ferromagnetic Ni-Fe alloys and Heusler compounds. Our experimental findings are fully supported by time dependent density functional theory simulations and, hence, suggests the possibility of coherently controlling spin dynamics on sub-femtosecond timescales.
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Stefan Mathias "Ultrafast optically-induced spin transfer in ferromagnetic alloys and compounds (Conference Presentation)", Proc. SPIE PC12205, Spintronics XV, PC122050A (4 October 2022); https://doi.org/10.1117/12.2634137
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KEYWORDS
Ferromagnetics
Ultrafast phenomena
Magnetism
Control systems
Pulsed laser operation
Spin dynamics
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