Single shot ultrafast all optical magnetization switching of ferromagnetic Co/Pt multilayers
- Author(s): Gorchon, J
- Lambert, CH
- Yang, Y
- Pattabi, A
- Wilson, RB
- Salahuddin, S
- Bokor, J
- et al.
Published Web Locationhttps://doi.org/10.1109/E3S.2017.8246170
© 2017 IEEE. The ability to control magnetism in sub-picosecond timescales using laser pulses has potential applications in fast magnetic devices. It has been demonstrated that a single femto-second laser pulse can reverse -The magnetization of a film within a few picoseconds , a phenomenon called as all-optical switching (AOS). However, this phenomenon thus far has been observed only in ferrimagnetic GdFeCo films. On -The o-Ther hand, ferromagnetic films, which are of greater interest than ferrimagnets in many technological applications, need multiple laser pulses for magnetization reversal , making -The overall effect slow and energy inefficient. Fast, singleshot switching of a ferromagnet can open up new avenues for spintronic devices that operate at unprecedented picosecond timescales, -Thereby making -Them viable non-volatile replacements for silicon based RAMs and logic devices.
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