Ultrafast Dynamics of Demagnetization in FeMn/MnGa Bilayer Nanofilm Structures via Phonon Transport [PDF]
Nanomaterials, 2022 Superdiffusive spin transport has been proposed as a new mechanism of ultrafast demagnetization in layered magnetic nanostructures and demonstrated experimentally.
Zhifeng Chen +2 more
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Spatiotemporal observation of surface plasmon polariton mediated ultrafast demagnetization [PDF]
Nature CommunicationsSurface plasmons offer a promising avenue in the pursuit of swift and localized manipulation of magnetism for advanced magnetic storage and information processing technology.
Yuzhu Fan +4 more
doaj +3 more sources
Three-stage ultrafast demagnetization dynamics in a monolayer ferromagnet [PDF]
Nature CommunicationsIntense laser pulses can be used to demagnetize a magnetic material on an extremely short timescale. While this ultrafast demagnetization offers the potential for new magneto-optical devices, it poses challenges in capturing coupled spin-electron and ...
Na Wu +4 more
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Ultrafast demagnetization in iron: Separating effects by their nonlinearity [PDF]
Structural Dynamics, 2018 The laser-driven ultrafast demagnetization effect is one of the long-standing problems in solid-state physics. The time scale is given not only by the transfer of energy, but also by the transport of angular momentum away from the spin system.
Kevin Bühlmann +9 more
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Ultrafast demagnetization by hot electrons: Diffusion or super-diffusion? [PDF]
Structural Dynamics, 2016 Ultrafast demagnetization of ferromagnetic metals can be achieved by a heat pulse propagating in the electron gas of a non-magnetic metal layer, which absorbs a pump laser pulse.
G. Salvatella +5 more
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Ultrafast Spin Dynamics of Pt/Gd19(Co0.8Fe0.2)81/Ta Heterostructure Investigated by Double-Pump Terahertz Emission Spectroscopy [PDF]
NanomaterialsUltrafast spin dynamics is a core research focus for advancing ultrafast spintronic devices, yet its accurate quantitative probing remains a challenge with conventional time-resolved techniques.
Changwei Li +6 more
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Ultrafast Laser‐Induced Interatomic Forces in Magnetostrictive Metals [PDF]
Advanced ScienceFemtosecond photoexcitation can abruptly redistribute electrons and trigger a series of transient nonequilibrium processes, among which ultrafast interatomic forces play a pivotal role in determining the structural and functional characteristics of ...
Xiaoxue Zeng +9 more
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Electronic mechanism of sub-100-fs demagnetization induced by a femtosecond light pulse [PDF]
Scientific ReportsA quantitative understanding of the processes that trigger light-induced demagnetization on ultrashort timescales is crucial for achieving an ultrafast, radiation-controlled magnetic response in materials.
Konrad J. Kapcia +6 more
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Coupled atomistic spin-lattice simulations of ultrafast demagnetization in 3d ferromagnets [PDF]
Scientific ReportsDespite decades of research, the role of the lattice and its coupling to the magnetisation during ultrafast demagnetisation processes is still not fully understood.
M. Pankratova +8 more
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Results in PhysicsThe influence of spin–orbit coupling (SOC) on ultrafast demagnetization dynamics is still an obscure issue. Ferromagnetic ternary alloy film containing Platinum element has the advantage that SOC strength can be regulated flexibly by varying the ...
Zhifeng Chen, Zhikun Xie
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