Ultrafast demagnetization in buried Co80Dy20 as fingerprint of hot-electron transport
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2019.04.068
Abstract: Abstract The generation of ultrashort hot-electron pulses in metallic heterostructures offers attractive perspectives for the ultrafast spin manipulation on the picosecond time scale. In such approach, the hot-electron pulses are produced by exciting a non-magnetic… read more here.
Keywords: ultrafast demagnetization; transport; hot electron; electron ... See more keywords
Magnetic Configuration Driven Femtosecond Spin Dynamics in Synthetic Antiferromagnets.
Sign Up to like & getrecommendations! Published in 2022 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.2c01555
Abstract: Ultrafast demagnetization in diverse materials has sparked immense research activities due to its captivating richness and contested underlying mechanisms. Among these, the two most celebrated mechanisms have been the spin-flip scattering (SFS) and spin transport… read more here.
Keywords: synthetic antiferromagnets; femtosecond; magnetic configuration; spin ... See more keywords
The indispensable role of the transversal spin fluctuations mechanism in laser-induced demagnetization of Co/Pt multilayers with nanoscale magnetic domains.
Sign Up to like & getrecommendations! Published in 2018 at "Nanotechnology"
DOI: 10.1088/1361-6528/aabdc9
Abstract: The switching of magnetic domains induced by an ultrashort laser pulse has been demonstrated in nanostructured ferromagnetic films. This leads to the dawn of a new era in breaking the ultimate physical limit for the… read more here.
Keywords: magnetic domains; ultrafast demagnetization; laser; mechanism ... See more keywords
Investigation of ultrafast demagnetization and Gilbert damping and their correlation in different ferromagnetic thin films grown under identical conditions
Sign Up to like & getrecommendations! Published in 2023 at "Nanotechnology"
DOI: 10.1088/1361-6528/acc079
Abstract: Following the demonstration of laser-induced ultrafast demagnetization in ferromagnetic nickel, several theoretical and phenomenological propositions have sought to uncover its underlying physics. In this work we revisit the three temperature model (3TM) and the microscopic… read more here.
Keywords: gilbert damping; demagnetization gilbert; thin films; demagnetization ... See more keywords
Giant anisotropic Gilbert damping versus isotropic ultrafast demagnetization in monocrystalline Co50Fe50 films
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.024404
Abstract: The magnetization orientation dependence of Gilbert damping and ultrafast demagnetization were investigated in single-crystalline ${\mathrm{Co}}_{50}{\mathrm{Fe}}_{50}$ films grown on a MgO(100) substrate by the time-resolved magneto-optical Kerr effect technique. The intrinsic Gilbert damping coefficient extracted from… read more here.
Keywords: gilbert damping; ultrafast demagnetization; anisotropic gilbert; gilbert ... See more keywords
Controlled coexcitation of direct and indirect ultrafast demagnetization in Co/Pd multilayers with large perpendicular magnetic anisotropy
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.214436
Abstract: Ever since its discovery in 1996, ultrafast demagnetization has ignited immense research interest due to its scientific rigor and technological potential. A flurry of recent theoretical and experimental investigations has proposed direct and indirect excitation… read more here.
Keywords: ultrafast demagnetization; direct indirect; controlled coexcitation; indirect ultrafast ... See more keywords
Ultrafast Demagnetization Dominates Fluence Dependence of Magnetic Scattering at Co M Edges.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.125.127201
Abstract: We systematically study the fluence dependence of the resonant scattering cross-section from magnetic domains in Co/Pd-based multilayers. Samples are probed with single extreme ultraviolet (XUV) pulses of femtosecond duration tuned to the Co M_{3,2} absorption… read more here.
Keywords: ultrafast demagnetization; resonant scattering; demagnetization dominates; fluence dependence ... See more keywords
Role of initial magnetic disorder: A time-dependent ab initio study of ultrafast demagnetization mechanisms
Sign Up to like & getrecommendations! Published in 2019 at "Science Advances"
DOI: 10.1126/sciadv.aau8000
Abstract: We investigate laser-induced ultrafast demagnetization of ferromagnetic systems for high-speed data processing and storage. Despite more than 20 years of development, the underlying physics of the laser-induced demagnetization process is still debated. We present a… read more here.
Keywords: ultrafast demagnetization; disorder; time; demagnetization ... See more keywords