Writing magnetic memory with ultrashort light pulses

AV Kimel, M Li - Nature Reviews Materials, 2019 - nature.com
Laser pulses are the shortest stimulus known to control the magnetization of materials and to
switch magnetic devices on the picosecond to femtosecond timescales. Femtosecond laser …

Progress towards ultrafast spintronics applications

A El-Ghazaly, J Gorchon, RB Wilson, A Pattabi… - Journal of Magnetism …, 2020 - Elsevier
The discovery of ultrafast demagnetization by Bigot and Beaurepaire in 1996 launched the
field of ultrafast magnetism–the study of sub-picosecond magnetization dynamics in …

The 2017 magnetism roadmap

D Sander, SO Valenzuela, D Makarov… - Journal of Physics D …, 2017 - iopscience.iop.org
Building upon the success and relevance of the 2014 Magnetism Roadmap, this 2017
Magnetism Roadmap edition follows a similar general layout, even if its focus is naturally …

Optically induced ultrafast magnetization switching in ferromagnetic spin valves

J Igarashi, W Zhang, Q Remy, E Díaz, JX Lin… - Nature Materials, 2023 - nature.com
The discovery of spin-transfer torque (STT) enabled the control of the magnetization
direction in magnetic devices in nanoseconds using an electrical current. Ultrashort optical …

Single pulse all-optical toggle switching of magnetization without gadolinium in the ferrimagnet Mn2RuxGa

C Banerjee, N Teichert, KE Siewierska, Z Gercsi… - Nature …, 2020 - nature.com
Energy-efficient control of magnetization without the help of a magnetic field is a key goal of
spintronics. Purely heat-induced single-pulse all-optical toggle switching has been …

Accelerating ultrafast magnetization reversal by non-local spin transfer

Q Remy, J Hohlfeld, M Vergès, Y Le Guen… - Nature …, 2023 - nature.com
When exciting a magnetic material with a femtosecond laser pulse, the amplitude of
magnetization is no longer constant and can decrease within a time scale comparable to the …

Comparing all-optical switching in synthetic-ferrimagnetic multilayers and alloys

M Beens, MLM Lalieu, AJM Deenen, RA Duine… - Physical Review B, 2019 - APS
We present an experimental and theoretical investigation of all-optical switching by single
femtosecond laser pulses. Our experimental results demonstrate that, unlike rare-earth …

The role of ultrafast magnon generation in the magnetization dynamics of rare-earth metals

B Frietsch, A Donges, R Carley, M Teichmann… - Science …, 2020 - science.org
Ultrafast demagnetization of rare-earth metals is distinct from that of 3d ferromagnets, as rare-
earth magnetism is dominated by localized 4f electrons that cannot be directly excited by an …

Engineering single-shot all-optical switching of ferromagnetic materials

J Igarashi, Q Remy, S Iihama, G Malinowski… - Nano Letters, 2020 - ACS Publications
Since it was recently demonstrated in a spin-valve structure, magnetization reversal of a
ferromagnetic layer using a single ultrashort optical pulse has attracted attention for future …

Picosecond optospintronic tunnel junctions

L Wang, H Cheng, P Li… - Proceedings of the …, 2022 - National Acad Sciences
Perpendicular magnetic tunnel junctions (p-MTJs), as building blocks of spintronic devices,
offer substantial potential for next-generation nonvolatile memory applications. However …