activity
20182024
most citedHigh-speed domain wall racetracks in a magnetic insulator

182 citations · 600 across the 11 of their papers we have counts for

collaborators

12 papers

cond-mat.mes-hall2024★ 8 cited

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…

cond-mat.mes-hall2023★ 81 cited

Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator

Saül Vélez, Sandra Ruiz-Gómez, Jakob Schaab +8

Magnetic skyrmions are compact chiral spin textures that exhibit a rich variety of topological phenomena and hold potential for developing high-density memory devices and novel com…

quant-ph2022

Fast scanning nitrogen-vacancy magnetometry by spectrum demodulation

P. Welter, B. A. Josteinsson, S. Josephy +4

We demonstrate a spectrum demodulation technique for greatly speeding up the data acquisition rate in scanning nitrogen-vacancy center magnetometry. Our method relies on a periodic…

cond-mat.mes-hall2022★ 52 cited

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…

cond-mat.mtrl-sci2022★ 25 cited

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…

cond-mat.mes-hall2022★ 29 cited

Imaging of sub-A currents in bilayer graphene using a scanning diamond magnetometer

M. L. Palm, W. S. Huxter, P. Welter +9

Nanoscale electronic transport gives rise to a number of intriguing physical phenomena that are accompanied by distinct spatial patterns of current flow. Here, we report on sensiti…

math.NA2021★ 7 cited

Parallel time integration using Batched BLAS (Basic Linear Algebra Subprograms) routines

Konstantin Herb, Pol Welter

We present an approach for integrating the time evolution of quantum systems. We leverage the computation power of graphics processing units (GPUs) to perform the integration of al…

cond-mat.mes-hall2020★ 64 cited

Co-existence of Bloch and Neel walls in a collinear antiferromagnet

M. S. Wornle, P. Welter, M. Giraldo +4

We resolve the domain-wall structure of the model antiferromagnet using nanoscale scanning diamond magnetometry and second-harmonic-generation microscopy. W…

cond-mat.mtrl-sci2019★ 22 cited

Current-induced fragmentation of antiferromagnetic domains

M. S. Wörnle, P. Welter, Z. Kašpar +7

Electrical and optical pulsing allow for manipulating the order parameter and magnetoresistance of antiferromagnets, opening novel prospects for digital and analog data storage in…

physics.app-ph2019★ 182 cited

High-speed domain wall racetracks in a magnetic insulator

Saül Vélez, Jakob Schaab, Martin S. Wörnle +9

Recent reports of current-induced switching of ferrimagnetic oxides coupled to a heavy metal layer have opened realistic prospects for implementing magnetic insulators into electri…

physics.optics2018★ 55 cited

Optomechanics with one-dimensional gallium phosphide photonic crystal cavities

Katharina Schneider, Yannick Baumgartner, Simon Hönl +5

Gallium phosphide offers an attractive combination of a high refractive index ( for vacuum wavelengths up to 4 μm) and a wide electronic bandgap (2.26 eV), enabling optical ca…

physics.app-ph2018★ 75 cited

Gallium phosphide-on-silicon dioxide photonic devices

Katharina Schneider, Pol Welter, Yannick Baumgartner +3

The development of integrated photonic circuits utilizing gallium phosphide requires a robust, scalable process for fabrication of GaP-on-insulator devices. Here we present the fir…