Results 41 to 50 of about 1,236 (182)
Spin current driven by ultrafast magnetization of FeRh
Nature Communications, 2023 Laser-induced ultrafast demagnetization is an important phenomenon that probes arguably the ultimate limits of the angular momentum dynamics in solid. Unfortunately, many aspects of the dynamics remain unclear except that the demagnetization transfers ...
Kyuhwe Kang +7 more
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Terahertz Spectral Signatures of Ultrafast Spin Transports in Ferromagnetic Heusler Alloy
Advanced Physics Research, 2023 Although the Co‐based Heusler compounds are predicted to be half‐metals, their sub‐picosecond demagnetization dynamics upon laser excitation show a transition‐metal‐like behavior.
Zuanming Jin +14 more
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Ultrafast Electron Dynamics in Magnetic Thin Films
Applied Sciences, 2021 In past decades, ultrafast spin dynamics in magnetic systems have been associated with heat deposition from high energy laser pulses, limiting the selective access to spin order.
Hovan Lee +3 more
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Theory of Femtosecond Laser-Induced Demagnetization [PDF]
, 2014 Using ab initio calculations we computed the ultrafast demagnetization that can be achieved by Elliott-Yafet electron-phonon spin-flip scatterings in laser-excited ferromagnets.
Carva, Karel, +10 more
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Capturing ultrafast magnetization phenomenon using femtosecond x rays
APL Materials, 2021 Recent advances in x-ray and extreme ultraviolet sources have enabled a new frontier for ultrafast studies of magnetic materials. Modern x-ray free electron lasers and high-harmonic generation sources combine the power of x-ray techniques available at ...
Spencer Jeppson, Roopali Kukreja
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Spin Berry points as crucial for ultrafast demagnetization [PDF]
Modern Physics Letters B, 2021 Laser-induced ultrafast demagnetization has puzzled researchers around the world for over two decades. Intrinsic complexity in electronic, magnetic and phononic subsystems is difficult to understand microscopically. So far, it is not possible to explain demagnetization using a single mechanism, which suggests a crucial piece of information still ...
Zhang, G. P. +2 more
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Physical Review X, 2012 The microscopic mechanisms responsible for the ultrafast loss of magnetic order triggered in ferromagnetic metals by optical excitation are still under debate.
T. Roth +7 more
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Robust Magnetic Order Upon Ultrafast Excitation of an Antiferromagnet
Advanced Materials Interfaces, 2022 The ultrafast manipulation of magnetic order due to optical excitation is governed by the intricate flow of energy and momentum between the electron, lattice, and spin subsystems.
Sang‐Eun Lee +10 more
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New Journal of Physics, 2019 The ultrafast demagnetization dynamics of 3d and 4f spins, respectively, in FeCo and Tb of TbFeCo alloy film are studied independently by employing a dual-color time-resolved magneto-optical Kerr spectroscopy.
Zhifeng Chen +3 more
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Twisted light affects ultrafast demagnetization
, 2022 Irradiation with an ultrashort laser pulse can completely destroy the magnetic order of ferromagnetic thin films on the femtosecond timescale. This phenomenon holds great potential for ultrafast spintronics and information processing and is an active field of research.
Prinz, Eva +2 more
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