Ultrafast spin dynamics in metallic layers and strongly correlated oxides

Ettore Carpene; Fabio Boschini; Hamoon Hedayat; Claudia Dallera; Ezio Puppin

doi:10.1117/12.2061653

28 August 2014 Ultrafast spin dynamics in metallic layers and strongly correlated oxides

Ettore Carpene, Fabio Boschini, Hamoon Hedayat, Claudia Dallera, Ezio Puppin

Proceedings Volume 9167, Spintronics VII; 91672D (2014) https://doi.org/10.1117/12.2061653
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

Abstract

The spin dynamics triggered by an ultrashort optical excitation can lead to a variety of behaviors depending on the specific spin and electronic structure of the material. In metallic films, electron-quasiparticles (phonons and magnons) interactions takes place on sub-picosecond timescale and demagnetization is established within 100 fs. In half-metal oxides, spin dynamics is much slower (100 ps) due to the inhibition of spin-flip processes. Furthermore, the dynamics of magnetic anisotropies can be exploited to control the magnetization in ferromagnets. Optically-induced reversible switching of the magnetization has been recently demonstrated in thin magnetic layers on the 100 picoseconds timescale.

Citation Download Citation

Ettore Carpene, Fabio Boschini, Hamoon Hedayat, Claudia Dallera, and Ezio Puppin "Ultrafast spin dynamics in metallic layers and strongly correlated oxides", Proc. SPIE 9167, Spintronics VII, 91672D (28 August 2014); https://doi.org/10.1117/12.2061653

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