221 citations · 643 across the 15 of their papers we have counts for
15 papers
Skyrmion-Excited Spin Wave Fractal Network
Nan Tang, W. L. N. C. Liyanage, Sergio A. Montoya +9
Magnetic skyrmions exhibit unique, technologically relevant pseudo-particle behaviors which arise from their topological protection, including well-defined, three-dimensional dynam…
Periodicity staircase in a Fe/Gd magnetic thin film
Arnab Singh, Junli Li, Sergio A. Montoya +7
Presence of multiple competing periodicities may result in a system to go through states with modulated periodicities, an example of which is the self-similar staircase-like struct…
On Ultrafast X-ray Methods for Magnetism
Rajan Plumley, Sathya Chitturi, Cheng Peng +36
With the introduction of x-ray free electron laser sources around the world, new scientific approaches for visualizing matter at fundamental length and time-scales have become poss…
Three-Dimensional Structure of Hybrid Magnetic Skyrmions Determined by Neutron Scattering
WLNC Liyanage, Nan Tang, Lizabeth Quigley +9
Magnetic skyrmions are topologically protected chiral spin textures which present opportunities for next-generation magnetic data storage and logic information technologies. The to…
Transport properties of dipole skyrmions in amorphous FeGd multilayers
Sergio Montoya, Marko Lubarda, Vitaliy Lomakin
The transport response of dipole skyrmions in amorphous centrosymmetric Fe/Gd multilayer is investigated by temperature and field-dependent resistivity measurements collected in th…
Energy-efficient generation of skyrmion phases in Co/Ni/Pt-based multilayers using Joule heating
Jeffrey A. Brock, Sergio A. Montoya, Mi-Young Im +1
We have studied the effects of electrical current pulses on skyrmion formation in a series of Co/Ni/Pt-based multilayers. Transmission X-ray microscopy reveals that by applying ele…
Ultrafast perturbation of magnetic domains by optical pumping in a ferromagnetic multilayer
Dmitriy Zusin, Ezio Iacocca, Loïc Le Guyader +23
Ultrafast optical pumping of spatially nonuniform magnetic textures is known to induce far-from-equilibrium spin transport effects. Here, we use ultrafast x-ray diffraction with un…
Direct demonstration of topological stability of magnetic skyrmions via topology manipulation
Soong-Geun Je, Hee-Sung Han, Se Kwon Kim +8
Topological protection precludes a continuous deformation between topologically inequivalent configurations in a continuum. Motivated by this concept, magnetic skyrmions, topologic…
Realization of Ordered Magnetic Skyrmions in Thin Films at Ambient Conditions
Ryan D. Desautels, Lisa DeBeer-Schmitt, Sergio Montoya +7
Magnetic skyrmions present interesting physics due to their topological nature and hold significant promise for future information technologies. A key barrier to realizing skyrmion…
Spin-orbit torque induced dipole skyrmion motion at room temperature
Sergio A. Montoya, Robert Tolley, Ian Gilbert +3
We demonstrate deterministic control of dipole-field-stabilized skyrmions by means of spin-orbit torques arising from heavy transition-metal seed layers. Experiments are performed…
Electronic Metamaterials with Tunable Second-order Optical Nonlinearities
Hung-Hsi Lin, Felipe Vallini, Mu-Han Yang +6
The ability to engineer metamaterials with tunable nonlinear optical properties is crucial for nonlinear optics. Traditionally, metals have been employed to enhance nonlinear optic…
Resonant properties of dipole skyrmions in amorphous Fe/Gd multilayers
S. A. Montoya, S. Couture, J. J. Chess +9
The dynamic response of dipole skyrmions in Fe/Gd multilayer films is investigated by ferromagnetic resonance measurements and compared to micromagnetic simulations. We detail thic…
A streamlined approach to mapping the magnetic induction of skyrmionic materials
Jordan J. Chess, Sergio A. Montoya, Tyler R. Harvey +5
Recently, Lorentz transmission electron microscopy (LTEM) has helped researchers advance the emerging field of magnetic skyrmions. These magnetic quasi-particles, composed of topol…
Tailoring magnetic energies to form dipole skyrmions and skyrmion lattices
S. A. Montoya, S. Couture, J. J. Chess +11
The interesting physics and potential memory technologies resulting from topologically protected spin textures such as skyrmions, has prompted efforts to discover new material syst…
Synthesizing Skyrmion Molecules in Fe-Gd Thin Films
J. C. T Lee, J. J. Chess, S. A. Montoya +9
We show that properly engineered amorphous Fe-Gd alloy thin films with perpendicular magnetic anisotropy exhibit room-temperature skyrmion molecules, or a pair of like-polarity, op…