Picosecond spintronics

Jon Gorchon

doi:10.1117/12.2596107

1 August 2021 Picosecond spintronics

Jon Gorchon

Proceedings Volume 11805, Spintronics XIV; 118050M (2021) https://doi.org/10.1117/12.2596107
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

Reducing energy dissipation while increasing speed in computation and memory is a long-standing challenge for spintronics research. In the last 20 years, femtosecond lasers have emerged as a tool to control the magnetization in specific magnetic materials at the picosecond timescale. However, the use of ultra-fast optics in integrated circuits and memories would require a major paradigm shift. An ultrafast electrical control of the magnetization is far preferable for integrated systems. In a recent work, we demonstrate reliable and deterministic control of the out-of-plane magnetization of a 1 nm-thick Co layer with single 6 ps-wide electrical pulses that induce spin orbit torques on the magnetization. These experiments show that spintronic phenomena can be exploited on picosecond time-scales for full magnetic control and should launch a new regime of ultrafast spin torque studies and applications.

Conference Presentation

Citation Download Citation

Jon Gorchon "Picosecond spintronics", Proc. SPIE 11805, Spintronics XIV, 118050M (1 August 2021); https://doi.org/10.1117/12.2596107

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