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Magnon hydrodynamics in an atomically-thin ferromagnet
Ruolan Xue, Nikola Maksimovic, Pavel E. Dolgirev +12
Strong interactions between particles can lead to emergent collective excitations. These phenomena have been extensively established in electronic systems, but are also expected to…
Giant enhancement of interlayer exchange in an ultrathin 2D magnet
Dahlia R. Klein, David MacNeill, Qian Song +8
Following the recent isolation of monolayer CrI3, there has been a surge of new two-dimensional van der Waals magnetic materials, whose incorporation in van der Waals heterostructu…
Current-Induced Torques with Dresselhaus Symmetry Due to Resistance Anisotropy in 2D Materials
Gregory M. Stiehl, David MacNeill, Nikhil Sivadas +7
We report measurements of current-induced torques in heterostructures of Permalloy (Py) with TaTe, a transition-metal dichalcogenide (TMD) material possessing low crystal symme…
Observation of the nonlinear Hall effect under time reversal symmetric conditions
Qiong Ma, Su-Yang Xu, Huitao Shen +18
The electrical Hall effect is the production of a transverse voltage under an out-of-plane magnetic field. Historically, studies of the Hall effect have led to major breakthroughs…
Electrical Control of 2D Magnetism in Bilayer CrI3
Bevin Huang, Genevieve Clark, Dahlia R. Klein +10
The challenge of controlling magnetism using electric fields raises fundamental questions and addresses technological needs such as low-dissipation magnetic memory. The recently re…
Probing magnetism in 2D van der Waals crystalline insulators via electron tunneling
Dahlia R. Klein, David MacNeill, Jose L. Lado +8
Magnetic insulators are a key resource for next-generation spintronic and topological devices. The family of layered metal halides promises ultrathin insulating multiferroics, spin…
Spin-orbit torques in NbSe/Permalloy bilayers
Marcos H. D. Guimaraes, Gregory M. Stiehl, David MacNeill +2
We present measurements of current-induced spin-orbit torques generated by NbSe, a fully-metallic transition-metal dichalcogenide material, made using the spin-torque ferromagn…
Thickness dependence of spin-orbit torques generated by WTe2
David MacNeill, Gregory M. Stiehl, Marcos H. D. Guimaraes +3
We study current-induced torques in WTe2/permalloy bilayers as a function of WTe2 thickness. We measure the torques using both second-harmonic Hall and spin-torque ferromagnetic re…
Control of spin-orbit torques through crystal symmetry in WTe2/ferromagnet bilayers
D. MacNeill, G. M. Stiehl, M. H. D. Guimaraes +3
Recent discoveries regarding current-induced spin-orbit torques produced by heavy-metal/ferromagnet and topological-insulator/ferromagnet bilayers provide the potential for dramati…
Breaking of valley degeneracy by magnetic field in monolayer MoSe2
David MacNeill, Colin Heikes, Kin Fai Mak +5
Using polarization-resolved photoluminescence spectroscopy, we investigate valley degeneracy breaking by out-of-plane magnetic field in back-gated monolayer MoSe devices. We ob…