Spin-photo-currents generated by femtosecond laser pulses in a ferrimagnetic GdFeCo/Pt bilayer
Published version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Huisman, TJ
Ciccarelli, Chiara https://orcid.org/0000-0003-2299-3704
Tsukamoto, A
Mikhaylovskiy, RV
Rasing, T
Abstract
© 2017 Author(s). Using THz emission spectroscopy, we detect spin-photo-currents from a ferrimagnetic amorphous alloy GdFeCo to an adjacent Pt capping layer. The currents are generated upon excitation of a GdFeCo/Pt heterostructure with femtosecond laser pulses. It is found that the polarization of the spin-polarized current is determined by magnetic sublattice sensitivity rather than the total magnetization, allowing for spin-polarized current generation when the net magnetization is zero.
Description
Keywords
51 Physical Sciences, 5104 Condensed Matter Physics
Journal Title
Applied Physics Letters
Conference Name
Journal ISSN
0003-6951
1077-3118
1077-3118
Volume Title
110
Publisher
AIP Publishing