Search Results - "Th. Rasing"
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Training and pattern recognition by an opto-magnetic neural network
Published in Applied physics letters (10-01-2022)“…Neuromorphic computing aims to mimic the architecture of the human brain to carry out computational tasks that are challenging and much more energy consuming…”
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Single-shot all-optical switching of magnetization in Tb/Co multilayer-based electrodes
Published in Scientific reports (23-03-2020)“…Ever since the first observation of all-optical switching of magnetization in the ferrimagnetic alloy GdFeCo using femtosecond laser pulses, there has been…”
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3
Spin-photo-currents generated by femtosecond laser pulses in a ferrimagnetic GdFeCo/Pt bilayer
Published in Applied physics letters (13-02-2017)“…Using THz emission spectroscopy, we detect spin-photo-currents from a ferrimagnetic amorphous alloy GdFeCo to an adjacent Pt capping layer. The currents are…”
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Role of magnetic circular dichroism in all-optical magnetic recording
Published in Physical review letters (20-03-2012)“…Using magneto-optical microscopy in combination with ellipsometry measurements, we show that all-optical switching with polarized femtosecond laser pulses in…”
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5
Ultrafast optical modification of exchange interactions in iron oxides
Published in Nature communications (16-09-2015)“…Ultrafast non-thermal manipulation of magnetization by light relies on either indirect coupling of the electric field component of the light with spins via…”
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Macrospin dynamics in antiferromagnets triggered by sub-20 femtosecond injection of nanomagnons
Published in Nature communications (05-02-2016)“…The understanding of how the sub-nanoscale exchange interaction evolves in macroscale correlations and ordered phases of matter, such as magnetism and…”
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7
Transient ferromagnetic-like state mediating ultrafast reversal of antiferromagnetically coupled spins
Published in Nature (London) (14-04-2011)“…Ferromagnetic surprise The dynamics of spin ordering in magnetic materials is of interest for both fundamental understanding and progress in…”
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8
Femtosecond photocurrents at the FeRh/Pt interface
Published in Applied physics letters (05-10-2020)“…Femtosecond laser excitations of FeRh/Pt bilayers launch an ultrafast pulse of electric photocurrents in the Pt-layer and subsequently result in the emission…”
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Ultrafast path for optical magnetization reversal via a strongly nonequilibrium state
Published in Physical review letters (11-09-2009)“…Using time-resolved single-shot pump-probe microscopy we unveil the mechanism and the time scale of all-optical magnetization reversal by a single circularly…”
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Ultrafast kinetics of the antiferromagnetic-ferromagnetic phase transition in FeRh
Published in Nature communications (30-05-2022)“…Understanding how fast short-range interactions build up long-range order is one of the most intriguing topics in condensed matter physics. FeRh is a test…”
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11
Helicity and field dependent magnetization dynamics of ferromagnetic Co/Pt multilayers
Published in Applied physics letters (15-08-2016)“…We present helicity and field dependent magnetization dynamics of ferromagnetic Co/Pt multilayers, suitable for all-optical helicity-dependent switching…”
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12
Ultrafast heating as a sufficient stimulus for magnetization reversal in a ferrimagnet
Published in Nature communications (07-02-2012)“…The question of how, and how fast, magnetization can be reversed is a topic of great practical interest for the manipulation and storage of magnetic…”
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13
All-optical magnetization reversal by circularly polarized laser pulses: Experiment and multiscale modeling
Published in Physical review. B, Condensed matter and materials physics (06-03-2012)“…We present results of detailed experimental and theoretical studies of all-optical magnetization reversal by single circularly-polarized laser pulses in…”
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Nanoscale spin reversal by non-local angular momentum transfer following ultrafast laser excitation in ferrimagnetic GdFeCo
Published in Nature materials (01-04-2013)“…The dynamics of thin magnetic films revealed by ultrafast laser techniques cannot be explained by standard equilibrium descriptions. Diffraction experiments…”
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All-optical spin switching probability in [Tb/Co] multilayers
Published in Scientific reports (22-03-2021)“…Since the first experimental observation of all-optical switching phenomena, intensive research has been focused on finding suitable magnetic systems that can…”
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17
Anomalously Damped Heat-Assisted Route for Precessional Magnetization Reversal in an Iron Garnet
Published in Physical review letters (18-01-2019)“…A heat-assisted route for subnanosecond magnetic recording is discovered for the dielectric bismuth-substituted yttrium iron garnet, known for possessing small…”
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18
Spin-current-mediated rapid magnon localisation and coalescence after ultrafast optical pumping of ferrimagnetic alloys
Published in Nature communications (15-04-2019)“…Sub-picosecond magnetisation manipulation via femtosecond optical pumping has attracted wide attention ever since its original discovery in 1996. However, the…”
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Terahertz-driven magnetism dynamics in the orthoferrite DyFeO3
Published in Applied physics letters (23-02-2015)“…Terahertz (THz) driven magnetization dynamics are explored in the orthoferrite DyFeO3. A high-field, single cycle THz pulse is used to excite magnon modes in…”
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Supervised learning of an opto-magnetic neural network with ultrashort laser pulses
Published in Applied physics letters (13-05-2019)“…The explosive growth of data and its related energy consumption is pushing the need to develop energy-efficient brain-inspired schemes and materials for data…”
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