Acoustic control of magnetism toward energy-efficient applications

WG Yang, H Schmidt - Applied Physics Reviews, 2021 - pubs.aip.org
The control of magnetism by acoustically induced strain has driven significant research
activities, with the ultimate goal of pursuing novel, ultrafast, compact, and energy-efficient …

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 …

Electrical control of magnetism by electric field and current-induced torques

A Fert, R Ramesh, V Garcia, F Casanova… - arxiv preprint arxiv …, 2023 - arxiv.org
While early magnetic memory designs relied on magnetization switching by locally
generated magnetic fields, key insights in condensed matter physics later suggested the …

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 …

Magnetic Structure-Dependent Ultrafast Spin Relaxation in Magnet CrI3: A Time-Domain ab Initio Study

H Lu, R Long - Nano Letters, 2024 - ACS Publications
Two-dimensional magnet CrI3 is a promising candidate for spintronic devices. Using
nonadiabatic molecular dynamics and noncollinear spin time-dependent density functional …

Modeling ultrafast demagnetization and spin transport: The interplay of spin-polarized electrons and thermal magnons

M Beens, RA Duine, B Koopmans - Physical Review B, 2022 - APS
We theoretically investigate laser-induced spin transport in metallic magnetic
heterostructures using an effective spin-transport description that treats itinerant electrons …

Element-resolved evidence of superdiffusive spin current arising from ultrafast demagnetization process

R Gupta, F Cosco, RS Malik, X Chen, S Saha, A Ghosh… - Physical Review B, 2023 - APS
Using element-specific measurements of the ultrafast demagnetization of Ru/Fe 65 Co 35
hetero-structures, we show that Ru can exhibit a significant magnetic contrast (3 …

Is terahertz emission a good probe of the spin current attenuation length?

J Gorchon, S Mangin, M Hehn, G Malinowski - Applied Physics Letters, 2022 - pubs.aip.org
Terahertz (THz) emission from magnetic films has recently become an important
characterization tool of spintronic properties, particularly since no patterning is required. One …

Magnetization manipulation using ultra-short light pulses

Y Xu, S Mangin - Journal of Magnetism and Magnetic Materials, 2022 - Elsevier
In this review, we discuss the different results demonstrating deterministic magnetization
switching using ultra-fast laser pulses, named all-optical switching (AOS). The response of …

Single laser pulse induced magnetization switching in in-plane magnetized GdCo alloys

JX Lin, M Hehn, T Hauet, Y Peng, J Igarashi… - Physical Review B, 2023 - APS
The discovery of all-optical ultrafast deterministic magnetization switching has opened up
new possibilities for manipulating magnetization in devices using femtosecond laser pulses …