693 citations · 1.8k across the 24 of their papers we have counts for
26 papers
Leveraging symmetry for an accurate spin-orbit torques characterization in ferrimagnetic insulators
Martín Testa-Anta, Charles-Henri Lambert, Can Onur Avci
Spin-orbit torques (SOTs) have emerged as an efficient means to electrically control the magnetization in ferromagnetic heterostructures. Lately, an increasing attention has been d…
A Rate Model of Electron Populations for Non-linear High-Fluence X-ray Absorption Near-Edge Spectra
Robin Y. Engel, Markus Scholz, Jan O. Schunck +1
Absorbing a focused, femtosecond X-ray pulse from a Free-Electron Laser (FEL) can lead to extreme electronic excitations in solids. This excitation drives changes of the electronic…
Electron Dynamics at High-Energy Densities in Nickel from Non-linear Resonant X-ray Absorption Spectra
Robin Y. Engel, Oliver Alexander, Kaan Atak +40
The pulse intensity from X-ray free-electron lasers (FELs) can create extreme excitation densities in solids, entering the regime of non-linear X-ray-matter interactions. We show L…
The interplay of local electron correlations and ultrafast spin dynamics in fcc Ni
Tobias Lojewski, Mohamed F. Elhanoty, Loïc Le Guyader +48
The complex electronic structure of metallic ferromagnets is determined by a balance between exchange interaction, electron hopping leading to band formation, and local Coulomb rep…
Control of field- and current-driven magnetic domain wall motion by exchange-bias in Cr2O3/Co/Pt trilayers
B. J. Jacot, S. Vèlez, P. Noël +4
We investigate the motion of magnetic domain walls driven by magnetic fields and current-driven spin-orbit torques in an exchange-biased system with perpendicular magnetization. We…
Engineering the spin-orbit torque efficiency and magnetic properties of Tb/Co ferrimagnetic multilayers by stacking order
Mickey Martini, Can Onur Avci, Silvia Tacchi +2
We measured the spin-orbit torques (SOTs), current-induced switching, and domain wall (DW) motion in synthetic ferrimagnets consisting of Co/Tb layers with differing stacking order…
Time-dependent multistate switching of topological antiferromagnetic order in MnSn
Gunasheel Kauwtilyaa Krishnaswamy, Giacomo Sala, Benjamin Jacot +4
The manipulation of antiferromagnetic order by means of spin-orbit torques opens unprecedented opportunities to exploit the dynamics of antiferromagnets in spintronic devices. In t…
Scanning gradiometry with a single spin quantum magnetometer
William S. Huxter, Marius L. Palm, Miranda L. Davis +4
Here, we demonstrate a gradiometry technique that significantly enhances the measurement sensitivity of such static fields, leading to new opportunities in the imaging of weakly ma…
Magnon transport and thermoelectric effects in ultrathin Tm3Fe5O12/Pt nonlocal devices
Jialiang Gao, Charles-Henri Lambert, Richard Schlitz +3
The possibility of electrically exciting and detecting magnon currents in magnetic insulators has opened exciting perspectives for transporting spin information in electronic devic…
Scanning nitrogen-vacancy center magnetometry in large in-plane magnetic fields
P. Welter, J. Rhensius, A. Morales +5
Scanning magnetometry with nitrogen-vacancy (NV) centers in diamond has emerged as a powerful microscopy for studying weak stray field patterns with nanometer resolution. Due to th…
Chiral Coupling between Magnetic Layers with Orthogonal Magnetization
Can Onur Avci, Charles-Henri Lambert, Giacomo Sala +1
We report on the occurrence of strong interlayer Dzyaloshinskii-Moriya interaction (DMI) between an in-plane magnetized Co layer and a perpendicularly magnetized TbFe layer through…
Spin-orbit torques and magnetotransport properties of -Sn and -Sn heterostructures
Federico Binda, Can Onur Avci, Santos Francisco Alvarado +3
Topological insulators have emerged as an important material class for efficient spin-charge interconversion. Most topological insulators considered to date are binary or ternary c…
Control of nonlocal magnon spin transport via magnon drift currents
Richard Schlitz, Saül Vélez, Akashdeep Kamra +4
Spin transport via magnon diffusion in magnetic insulators is important for a broad range of spin-based phenomena and devices. However, the absence of the magnon equivalent of an e…
A two-terminal spin valve device controlled by spin-orbit torques with enhanced giant magnetoresistance
Can Onur Avci, Charles-Henri Lambert, Giacomo Sala +1
We report on the combination of current-induced spin-orbit torques and giant magnetoresistance in a single device to achieve all-electrical write and read out of the magnetization.…
Real-time Hall-effect detection of current-induced magnetization dynamics in ferrimagnets
G. Sala, V. Krizakova, E. Grimaldi +3
Measurements of the transverse Hall resistance are widely used to investigate electron transport, magnetization phenomena, and topological quantum states. Owing to the difficulty o…
Systematic study of nonmagnetic resistance changes due to electrical pulsing in single metal layers and metal/antiferromagnet bilayers
B. J. Jacot, G. Krishnaswamy, G. Sala +4
Intense current pulses are often required to operate microelectronic and spintronic devices. Notably, strong current pulses have been shown to induce magnetoresistance changes attr…
Unifying femtosecond and picosecond single-pulse magnetic switching in GdFeCo
Florian Jakobs, Thomas Ostler, Charles-Henri Lambert +6
Many questions are still open regarding the physical mechanisms behind the magnetic switching in GdFeCo alloys by single optical pulses. Phenomenological models suggest a femtoseco…
Thickness Dependence of Spin-Orbit Torques in Ferrimagnetic GdFeCo Alloys
Niklas Roschewsky, Charles-Henri Lambert, Sayeef Salahuddin
So far, studies of spin-orbit torques (SOT) in ferromagnets with perpendicular magnetic anisotropy (PMA) have been restricted to ultra thin samples, while a systematic study of its…
Single shot ultrafast all optical magnetization switching of ferromagnetic Co/Pt multilayers
Jon Gorchon, Charles-Henri Lambert, Yang Yang +4
In a number of recent experiments, it has been shown that femtosecond laser pulses can control magnetization on picosecond timescales, which is at least an order of magnitude faste…
Ultrafast Magnetization Reversal by Picosecond Electrical Pulses
Yang Yang, R. B. Wilson, Jon Gorchon +3
The field of spintronics involves the study of both spin and charge transport in solid state devices with a view toward increasing their functionality and efficiency. Alternatively…
Electron-phonon interaction during optically induced ultrafast magnetization dynamics of Au/GdFeCo bilayers
Richard B Wilson, Charles-Henri Lambert, Jon Gorchon +3
The temperature evolution of GdFeCo electrons following optical heating plays a key role in all optical switching of GdFeCo and is primarily governed by the strength of coupling be…
Ultrafast Magnetic Switching of GdFeCo with Electronic Heat Currents
R. B. Wilson, Jon Gorchon, Yang Yang +3
We report the magnetic response of Au/GdFeCo bilayers to optical irradiation of the Au surface. For bilayers with Au thickness greater than 50 nm, the great majority of energy is a…
Electric Current Induced Ultrafast Demagnetization
R. B. Wilson, Yang Yang, Jon Gorchon +3
We report the magnetic response of Co/Pt multilayers to picosecond electrical heating. Using photoconductive Auston switches, we generate electrical pulses with 5.5 picosecond dura…
Two types of all-optical magnetization switching mechanisms using femtosecond laser pulses
M. S. El Hadri, P. Pirro, C. -H. Lambert +6
Magnetization manipulation in the absence of an external magnetic field is a topic of great interest, since many novel physical phenomena need to be understood and promising new ap…