Ultrafast Laser-Excited Spin Transport in Au/Fe/MgO(001): Relevance of the Fe 
Layer Thickness

Alekhin, Alexandr; Bürstel, D.; Melnikov, Alexey; Diesing, D.; Bovensiepen, Uwe

doi:10.1007/978-3-319-07743-7_75

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Ultrafast Laser-Excited Spin Transport in Au/Fe/MgO(001): Relevance of the Fe Layer Thickness

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Alekhin, Alexandr
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Melnikov, Alexey
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Alekhin, A., Bürstel, D., Melnikov, A., Diesing, D., & Bovensiepen, U. (2015). Ultrafast Laser-Excited Spin Transport in Au/Fe/MgO(001): Relevance of the Fe Layer Thickness. In J.-Y. Bigot, W. Hübner, T. Rasing, & R. Chantrell (Eds.), Ultrafast Magnetism I (pp. 241-243). Cham: Springer. doi:10.1007/978-3-319-07743-7_75.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0023-D409-9

Abstract

Propagation dynamics of spin-dependent optical excitations is investigated by back-pump front-probe experiments in Au/Fe/MgO(001). We observe a decrease for all pump-probe signals detected at the Au surface, if the Fe thickness in increased. Relaxation processes within Fe limit the emission region of ballistic spins at the Fe/Au interface to ~1 nm.