212 citations · 956 across the 41 of their papers we have counts for
11 papers · 1 filter
Topologically Protected Vortex Structures to Realize Low-Noise Magnetic Sensors
Dieter Suess, Anton Bachleitner-Hofmann, Armin Satz +11
Micromagnetic sensors play a major role towards the miniaturization in the industrial society. The adoption of new and emerging sensor technologies like anisotropic magnetoresistan…
Contactless and absolute linear displacement detection based upon 3D printed magnets combined with passive radio-frequency identification
Roman Windl, Claas Abert, Florian Bruckner +4
Within this work a passive and wireless magnetic sensor, to monitor linear displacements is proposed. We exploit recent advances in 3D printing and fabricate a polymer bonded magne…
Noise reduction in heat-assisted magnetic recording by optimizing a high/low Tc bilayer structure
Olivia Muthsam, Christoph Vogler, Dieter Suess
It is assumed that heat-assisted magnetic recording (HAMR) is the recording technique of the future. For pure hard magnetic grains in high density media with an average diameter of…
A fast finite-difference algorithm for topology optimization of permanent magnets
Claas Abert, Christian Huber, Florian Bruckner +3
We present a finite-difference method for the topology optimization of permanent magnets that is based on the FFT accelerated computation of the stray-field. The presented method e…
AC noise reduction based on exchange coupled grains for heat-assisted-magnetic recording: The effect of an FeRh interlayer
Christoph Vogler, Claas Abert, Florian Bruckner +1
High storage density and high data rate are two of the most desired properties of modern hard disk drives. Heat-assisted magnetic recording (HAMR) is believed to achieve both. Reco…
Spin Torque Efficiency and Analytic Error Rate Estimates of Skyrmion Racetrack Memory
Dieter Suess, Christoph Vogler, Florian Bruckner +2
In this paper the thermal stability of skyrmion bubbles and the critical currents to move them over pinning sites is investigated. For the used pinning geometries and the used para…
Efficiently reducing transition curvature in heat-assisted magnetic recording with state-of-the-art write heads
Christoph Vogler, Claas Abert, Florian Bruckner +1
The curvature of bit transitions on granular media is a serious problem for the read-back process. We address this fundamental issue and propose a possibility to efficiently reduce…
Significant reduction of critical currents in MRAM designs using dual free layer with perpendicular and in-plane anisotropy
Dieter Suess, Christoph Vogler, Florian Bruckner +2
One essential feature in MRAM cells is the spin torque efficiency, which describes the ratio of the critical switching current to the energy barrier. Within this paper it is report…
Topology Optimized and 3D Printed Polymer Bonded Permanent Magnets for a Predefined External Field
Christian Huber, Claas Abert, Florian Bruckner +4
Topology optimization offers great opportunities to design permanent magnetic systems that have specific external field characteristics. Additive manufacturing of polymer bonded ma…
Back hopping in spin-transfer-torque devices, possible origin and counter measures
Claas Abert, Hossein Sepehri-Amin, Florian Bruckner +3
The effect of undesirable high-frequency free-layer switching in magnetic multilayer systems, referred to as back hopping, is investigated by means of the spin-diffusion model. A p…
3D Printing of Polymer Bonded Rare-Earth Magnets With a Variable Magnetic Compound Density for a Predefined Stray Field
Christian Huber, Claas Abert, Florian Bruckner +7
Additive manufacturing of polymer bonded magnets is a recently developed technique, for single-unit production, and for structures that have been impossible to manufacture previous…