212 citations · 956 across the 41 of their papers we have counts for
15 papers · 1 filter
Dipolar-stabilized first and second-order antiskyrmions in ferrimagnetic multilayers
Michael Heigl, Sabri Koraltan, Marek Vaňatka +13
Skyrmions and antiskyrmions are topologically protected spin structures with opposite topological charge. Particularly in coexisting phases, these two types of magnetic quasi-parti…
Spin-canting effects in GMR sensors with wide dynamic field range
Clemens Muehlenhoff, Christoph Vogler, Wolfgang Raberg +2
Magnetoresistive (xMR) sensors find extensive application in science and industry, replacing Hall sensors in various low field environments. While there have been some efforts in i…
Microscopic origin of magnetization reversal in exchange-coupled ferro-/ferrimagnetic bilayers
Michael Heigl, Christoph Vogler, Andrada-Oana Mandru +4
In this study, the magnetic reversal process of exchange-coupled bilayer systems, consisting of a ferrimagnetic TbFeCo alloy layer and a ferromagnetic [Co/Ni/Pt]N multilayer, was i…
Hysteresis-free magnetization reversal of exchange-coupled bilayers with finite magnetic anisotropy
Christoph Vogler, Michael Heigl, Andrada-Oana Mandru +5
Exchange-coupled structures consisting of ferromagnetic and ferrimagnetic layers become technologically more and more important. We show experimentally the occurrence of completely…
Curie temperature modulated structure to improve the performance in heat-assisted magnetic recording
Olivia Muthsam, Christoph Vogler, Dieter Suess
We investigate how a temperature reduction in z-direction influences the switching probability and the noise in heat-assisted magnetic recording (HAMR) for a bit in bit-patterned m…
Stochastic ferrimagnetic Landau-Lifshitz-Bloch equation for finite magnetic structures
Christoph Vogler, Claas Abert, Florian Bruckner +1
Precise modeling of the magnetization dynamics of nanoparticles with finite size effects at fast varying temperatures is a computationally challenging task. Based on the Landau-Lif…
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…
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…
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…
Influence of grain size and exchange interaction on the LLB modeling procedure
Christoph Vogler, Claas Abert, Florian Bruckner +2
Reliably predicting bit-error rates in realistic heat-assisted magnetic recording simulations is a challenging task. Integrating the Landau-Lifshitz-Bloch (LLB) equation can reduce…
Basic noise mechanisms of heat-assisted-magnetic recording
Christoph Vogler, Claas Abert, Florian Bruckner +2
Heat-assisted magnetic recording (HAMR) is expected to be a key technology to significantly increase the areal storage density of magnetic recording devices. At high temperatures t…
Areal density optimizations for heat-assisted-magnetic recording of high density bit-patterned media
Christoph Vogler, Claas Abert, Florian Bruckner +2
Heat-assisted-magnetic recording (HAMR) is hoped to be the future recording technique for high density storage devices. Nevertheless, there exist several realizations strategies. W…
Superior bit error rate and jitter due to improved switching field distribution in exchange spring magnetic recording
Dieter Suess, Markus Fuger, Claas Abert +5
We report two effects that lead to a reduction of the switching field distribution in exchange spring media. The first effect relies on a subtle mechanism of the interplay between…
Heat assisted magnetic recording of bit patterned media beyond 10 Tb/in
Christoph Vogler, Claas Abert, Florian Bruckner +2
The limits of the areal storage density as can be achieved with heat assisted magnetic recording (HAMR) are still an open issue. We want to address this central question and presen…
Calculation of coercivity of magnetic nanostructures at finite temperatures
D. Suess, L. Breth, J. Lee +7
We report a finite temperature micromagnetic method (FTM) that allows for the calculation of the coercive field of arbitrary shaped magnetic nanostructures at time scales of nanose…