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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Femtosecond control of electric currents in metallic ferromagnetic heterostructures
AU - Huisman, T.J.
AU - Mikhaylovskiy, Rostislav
AU - Costa, J.D.
AU - Freimuth, F.
AU - Paz, E.
AU - Ventura, J.
AU - Freitas, P. P.
AU - Blugel, S.
AU - Mokrousov, Y.
AU - Rasing, Th.
AU - Kimel, A.V.
PY - 2016/2/8
Y1 - 2016/2/8
N2 - The idea to use not only the charge but also the spin of electrons in the operation of electronic devices has led to the development of spintronics, causing a revolution in how information is stored and processed. A novel advancement would be to develop ultrafast spintronics using femtosecond laser pulses. Employing terahertz (1012 Hz) emission spectroscopy and exploiting the spin–orbit interaction, we demonstrate the optical generation of electric photocurrents in metallic ferromagnetic heterostructures at the femtosecond timescale. The direction of the photocurrent is controlled by the helicity of the circularly polarized light. These results open up new opportunities for realizing spintronics in the unprecedented terahertz regime and provide new insights in all-optical control of magnetism.
AB - The idea to use not only the charge but also the spin of electrons in the operation of electronic devices has led to the development of spintronics, causing a revolution in how information is stored and processed. A novel advancement would be to develop ultrafast spintronics using femtosecond laser pulses. Employing terahertz (1012 Hz) emission spectroscopy and exploiting the spin–orbit interaction, we demonstrate the optical generation of electric photocurrents in metallic ferromagnetic heterostructures at the femtosecond timescale. The direction of the photocurrent is controlled by the helicity of the circularly polarized light. These results open up new opportunities for realizing spintronics in the unprecedented terahertz regime and provide new insights in all-optical control of magnetism.
KW - terahertz
KW - spintronics
KW - interface
KW - ultrafast
U2 - 10.1038/nnano.2015.331
DO - 10.1038/nnano.2015.331
M3 - Journal article
VL - 11
SP - 455
EP - 458
JO - Nature Nanotechnology
JF - Nature Nanotechnology
SN - 1748-3387
ER -