Techniques in micromagnetic simulation and analysis
Advances in nanofabrication now allow us to manipulate magnetic material at micro-and
nanoscales. As the steps of design, modelling and simulation typically precede that of …
nanoscales. As the steps of design, modelling and simulation typically precede that of …
Nanowire magnetic force sensors fabricated by focused-electron-beam-induced deposition
H Mattiat, N Rossi, B Gross, J Pablo-Navarro… - Physical Review …, 2020 - APS
We demonstrate the use of individual magnetic nanowires (NWs), grown by focused-
electron-beam-induced deposition (FEBID), as scanning magnetic force sensors …
electron-beam-induced deposition (FEBID), as scanning magnetic force sensors …
Analytical modeling of the interaction between skyrmions and extended defects
The performance of skyrmion-based spintronic devices can be greatly affected by the
presence of defects in the materials. Here we develop an analytic model for describing the …
presence of defects in the materials. Here we develop an analytic model for describing the …
[HTML][HTML] Fast nanoscale addressability of nitrogen-vacancy spins via coupling to a dynamic ferromagnetic vortex
MS Wolf, R Badea, J Berezovsky - Nature Communications, 2016 - nature.com
The core of a ferromagnetic vortex domain creates a strong, localized magnetic field, which
can be manipulated on nanosecond timescales, providing a platform for addressing and …
can be manipulated on nanosecond timescales, providing a platform for addressing and …
Map** the landscape of domain-wall pinning in ferromagnetic films using differential magneto-optical microscopy
R Badea, J Berezovsky - Physical Review Applied, 2016 - APS
The propagation of domain walls in a ferromagnetic film is largely determined by domain-
wall pinning at defects in the material. In this article, we map the effective potential …
wall pinning at defects in the material. In this article, we map the effective potential …
Relaxation of a single defect spin by the low-frequency gyrotropic mode of a magnetic vortex
We excite the gyrotropic mode of a magnetic vortex and observe the resulting effect on the
spin state of a nearby nitrogen-vacancy (NV) defect in diamond. Thin permalloy disks …
spin state of a nearby nitrogen-vacancy (NV) defect in diamond. Thin permalloy disks …
[HTML][HTML] Observation of pinning and pinning evasion dynamics of a magnetic vortex core
An understanding of the dynamics of magnetic textures as they interact with defects in the
host material is critical for proposed applications that depend on controlled translation of …
host material is critical for proposed applications that depend on controlled translation of …
Coherent rotation of a single spin via adiabatic half passage in the presence of a ferromagnetic vortex
R Badea, MS Wolf, J Berezovsky - Quantum Science and …, 2023 - iopscience.iop.org
We experimentally and numerically study possible implementations for π/2 rotations of a
single nitrogen-vacancy defect spin state in proximity to a magnetic vortex core. Dynamically …
single nitrogen-vacancy defect spin state in proximity to a magnetic vortex core. Dynamically …
Barkhausen imaging: A magneto-optical approach to map** the pinning landscape in soft ferromagnetic films
We demonstrate a magneto-optical microscopy technique to create two-dimensional images
of the pinning behavior of a vortex state as it is translated through a soft ferromagnetic film …
of the pinning behavior of a vortex state as it is translated through a soft ferromagnetic film …
[HTML][HTML] Exploiting bistable pinning of a ferromagnetic vortex for nitrogen-vacancy spin control
R Badea, MS Wolf, J Berezovsky - Applied Physics Letters, 2016 - pubs.aip.org
The strong, localized magnetic field produced by the core of a ferromagnetic vortex provides
a platform for addressing and controlling individual nitrogen-vacancy (NV) center spins in …
a platform for addressing and controlling individual nitrogen-vacancy (NV) center spins in …