84 citations · 421 across the 33 of their papers we have counts for
33 papers
Model of the magnon Kerr effect in a highly anisotropic ferromagnet
Davit Petrosyan, Hiroki Matsumoto, Hanchen Wang +3
The magnon Kerr effect is a nonlinear phenomenon that occurs universally in any ferromagnet with finite magnetic anisotropy. It manifests itself as a magnon population-dependent ch…
Challenges in orbital current-driven domain wall motion in light metal/ferrimagnet heterostructures
Min-Gu Kang, Jaerin Kim, Benjamin J. Jacot +2
Recent advances in spintronics suggest that orbital Hall currents generated by charge injection in light metals can provide nonequilibrium angular momentum without relying on stron…
Charge-to-spin conversion in epitaxial and polycrystalline Bi and Bi/Ag layers
Federica Nasr, Emir Karadža, Santos F. Alvarado +9
Bi is predicted to be an efficient generator of spin-orbit torques (SOTs), with charge-to-spin conversion efficiency comparable to those of prototypical heavy metals, such as Ta, W…
Coherent and Dissipative Spin Torques in Quantum Dots: A Unified Framework for Quantum Spin Dynamics
Dominic Ruckert, Stepan Kovarik, Richard Schlitz +4
The manipulation of single spins through spin-polarized tunneling opens new routes for quantum control at the atomic scale. We present a theoretical framework describing spin-trans…
High-mobility inertial domain walls driven by spin-transfer torque in a ferrimagnetic spinel oxide
Mingxing Wu, Shilei Ding, Laura van Schie +8
Efficient electrical manipulation of domain walls is key to developing magnetic devices with fast switching capabilities and low energy consumption. Here we demonstrate Bloch-type…
Disambiguating electrical detection of magnetization dynamics in magnetic insulators
Hanchen Wang, William Legrand, Shangyuan Wang +6
Electrical detection of magnetization dynamics in magnetic insulators underpins both fundamental studies of magnon transport and the development of low-loss magnonic devices. In he…
Loop-gap resonators achieving strong magnon-photon coupling in magnetic insulator thin films
Francesca Zanichelli, Davit Petrosyan, Hanchen Wang +4
Magnon-photon hybrid systems consisting of a three-dimensional electromagnetic resonator and a bulk magnetic insulator constitute the standard experimental platform in cavity magno…
Magnon Kerr Effect in a Magnetic Thin Film Strongly Coupled to a Microwave Resonator
Davit Petrosyan, Hiroki Matsumoto, Hanchen Wang +4
Progress in cavity magnonics relies on tunable nonlinearities in magnon-photon interactions for controlling magnon dynamics and frequency conversion. Here, we demonstrate the magno…
Dynamical Stabilization of Inverted Magnetization and Antimagnons by Spin Injection in an Extended Magnetic System
Emir Karadza, Hanchen Wang, Niklas Kercher +4
Dynamical perturbations can modify the energy landscape of a physical system, such that unstable equilibrium configurations become stable when subject to an external drive. The mag…
Generating unconventional spin-orbit torques with patterned phase gradients in tungsten thin films
Lauren J. Riddiford, Anne Flechsig, Shilei Ding +7
A key aim in spintronics is to achieve current-induced magnetization switching via spin-orbit torques without external magnetic fields. For this, the focus of recent work has been…
Direct Observation of Antimagnons with Inverted Dispersion
Hanchen Wang, Junfeng Hu, Wenjie Song +14
We report direct spectroscopic evidence of antimagnons, i.e., negative-energy spin waves identified by their signature inverted dispersion and left-handed precession with Brillouin…
Acoustic orbital Hall effect and orbital pumping in light-metal-ferromagnet bilayers
Mingxing Wu, Shilei Ding, Hiroki Matsumoto +1
Orbital currents provide a new degree of freedom for controlling magnetism, yet their interaction with lattice dynamics remains largely unexplored. Here we report a systematic inve…
Real-time dynamics of VCMA-assisted switching of magnetic tunnel junctions
Marco Hoffmann, Shaohai Chen, Gunasheel Kauwtilyaa Krishnaswamy +5
Voltage control of magnetic anisotropy (VCMA) induced by charge accumulation is typically considered as an ultrafast process, enabling energy-efficient and high-speed magnetization…
Intermediate diffusive-ballistic electron conduction around mesoscopic defects in graphene
Toni Markovic, Wei Huang, William S. Huxter +2
Non-diffusive effects in charge transport become relevant as device sizes and features become comparable to the electronic mean free path. As a model system, we investigate the ele…
Ultrathin bismuth-yttrium iron garnet films with tunable magnetic anisotropy
Hanchen Wang, William Legrand, Davit Petrosyan +7
We report on the epitaxial growth of nm-thick films of bismuth-substituted yttrium iron garnet (BiYIG) by high-temperature off-axis radio-frequency magnetron sputtering. We demonst…
Orbital Pumping in Ferrimagnetic Insulators
Hanchen Wang, Min-Gu Kang, Davit Petrosyan +5
We report the detection of pure orbital currents generated by both coherent and thermal magnons in the magnetic insulator Bi-doped yttrium iron garnet (BiYIG). The pumping of orbit…
Current-Controlled Magnon-Magnon Coupling in an On-Chip Cavity Resonator
Hanchen Wang, William Legrand, Richard Schlitz +1
Harnessing spin currents to control magnon dynamics enables new functionalities in magnonic devices. Here, we demonstrate current-controlled magnon-magnon coupling between cavity a…
Estimation of spin-orbit torques in the presence of current-induced magnon creation and annihilation
Paul Noël, Emir Karadža, Richard Schlitz +6
We present a comprehensive set of harmonic resistance measurements of the dampinglike (DL) and fieldlike (FL) torques in Pt/CoFeB, Pt/Co, W/CoFeB, W/Co, and YIG/Pt bilayers complem…
Nonlinear longitudinal and transverse magnetoresistances due to current-induced magnon creation-annihilation processes
Paul Noël, Richard Schlitz, Emir Karadža +4
Charge-spin conversion phenomena such as the spin Hall effect allow for the excitation of magnons in a magnetic layer by passing an electric current in an adjacent nonmagnetic cond…
Control of spin-orbit torque-driven domain nucleation through geometry in chirally coupled magnetic tracks
Guillaume Beaulieu, Zhaochu Luo, Víctor Raposo +4
The interfacial Dzyaloshinskii-Moriya interaction (DMI) can be exploited in magnetic thin films to realize lateral chirally coupled systems, providing a way to couple different sec…
Competing Ordinary and Hanle Magnetoresistance in Pt and Ti Thin Films
Sebastian Sailler, Giacomo Sala, Denise Reustlen +5
One of the key elements in spintronics research is the spin Hall effect, allowing to generate spin currents from charge currents. A large spin Hall effect is observed in materials…
Pulse Shaping Strategies for Efficient Switching of Magnetic Tunnel Junctions by Spin-Orbit Torque
Marco Hoffmann, Viola Krizakova, Vaishnavi Kateel +3
The writing energy for reversing the magnetization of the free layer in a magnetic tunnel junction (MTJ) is a key figure of merit for comparing the performances of magnetic random…
Mitigation of Gilbert Damping in the CoFe/CuOx Orbital Torque System
Shilei Ding, Hanchen Wang, William Legrand +2
Charge-spin interconversion processes underpin the generation of spin-orbit torques in magnetic/nonmagnetic bilayers. However, efficient sources of spin currents such as 5d metals…
Lattice-tunable substituted iron garnets for low-temperature magnonics
William Legrand, Yana Kemna, Stefan Schären +7
The synthesis of nm-thick epitaxial films of iron garnets by physical vapor deposition has opened up exciting opportunities for the on-chip generation and processing of microwave s…