149 citations · 450 across the 12 of their papers we have counts for
12 papers
Hidden quantum correlations in the ground states of quasiclassical spin systems
Levente Rózsa, Dennis Wuhrer, Sebastián A. Díaz +2
Frustrated spin models may lead to the formation of both classical non-collinear spin structures and unique quantum phases including highly entangled quantum spin liquids. Here, we…
Spacetime magnetic hopfions: from internal excitations and braiding of skyrmions
R. Knapman, T. Tausendpfund, S. A. Díaz +1
Spatial topology endows topological solitons, such as skyrmions and hopfions, with fascinating dynamics. However, the temporal dimension has so far provided a passive stage on whic…
Laser-controlled real- and reciprocal-space topology in multiferroic insulators
Tomoki Hirosawa, Jelena Klinovaja, Daniel Loss +1
Magnetic materials in which it is possible to control the topology of their magnetic order in real space or the topology of their magnetic excitations in reciprocal space are highl…
Magnonic Quadrupole Topological Insulator in Antiskyrmion Crystals
Tomoki Hirosawa, Sebastian A. Diaz, Jelena Klinovaja +1
When the crystalline symmetries that protect a higher-order topological phase are not preserved at the boundaries of the sample, gapless hinge modes or in-gap corner states cannot…
Spin Wave Radiation by a Topological Charge Dipole
Sebastian A. Diaz, Tomoki Hirosawa, Daniel Loss +1
The use of spin waves (SWs) as data carriers in spintronic and magnonic logic devices offers operation at low power consumption, free of Joule heating. Nevertheless, the controlled…
Chiral Magnonic Edge States in Ferromagnetic Skyrmion Crystals Controlled by Magnetic Fields
Sebastian A. Diaz, Tomoki Hirosawa, Jelena Klinovaja +1
Achieving control over magnon spin currents in insulating magnets - where dissipation due to Joule heating is highly suppressed - is an active area of research that could lead to e…
Topological Magnons and Edge States in Antiferromagnetic Skyrmion Crystals
Sebastian A. Diaz, Jelena Klinovaja, Daniel Loss
Antiferromagnetic skyrmion crystals are magnetic phases predicted to exist in antiferromagnets with Dzyaloshinskii-Moriya interactions. Their spatially periodic noncollinear magnet…
Avalanches and Criticality in Driven Magnetic Skyrmions
S. A. Diaz, C. Reichhardt, D. P. Arovas +2
We show using numerical simulations that slowly driven skyrmions interacting with random pinning move via correlated jumps or avalanches. The avalanches exhibit power law distribut…
Fluctuations and Noise Signatures of Driven Magnetic Skyrmions
Sebastian A. Diaz, C. J. O. Reichhardt, Daniel P. Arovas +2
Magnetic skyrmions are particle-like objects with topologically-protected stability which can be set into motion with an applied current. Using a particle-based model we simulate c…
Quantum Nucleation of Skyrmions in Magnetic Films by Inhomogeneous Fields
Sebastian A. Diaz, Daniel P. Arovas
Recent experiments have reported on controlled nucleation of individual skyrmions in chiral magnets. Here we show that in magnetic ultra-thin films with interfacial Dzyaloshinskii-…
Controlling skyrmion helicity via engineered Dzyaloshinskii-Moriya interactions
Sebastián A. Díaz, Roberto E. Troncoso
Single magnetic skyrmion dynamics in chiral magnets with a spatially inhomogeneous Dzyaloshinskii-Moriya interaction (DMI) is considered. Based on the relation between DMI coupling…
Deconstructing noise and its universal crossover to non- behavior
Sebastian A. Diaz, Massimiliano Di Ventra
Noise of stochastic processes whose power spectrum scales at low frequencies, , as appears in such diverse systems that it is considered universal. However, there have bee…