Skyrmionic device for three dimensional magnetic field sensing enabled by spin-orbit torques
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| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910381903970304 |
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| author | Koraltan, Sabri Gupta, Rahul Pradeep, Reshma Peremadathil Kammerbauer, Fabian Kononenko, Iryna Prügl, Klemens Kirsch, Michael Aichner, Bernd Helbig, Santiago Bruckner, Florian Abert, Claas Mandru, Andrada Oana Satz, Armin Jakob, Gerhard Hug, Hans Josef Kläui, Mathias Suess, Dieter |
| author_facet | Koraltan, Sabri Gupta, Rahul Pradeep, Reshma Peremadathil Kammerbauer, Fabian Kononenko, Iryna Prügl, Klemens Kirsch, Michael Aichner, Bernd Helbig, Santiago Bruckner, Florian Abert, Claas Mandru, Andrada Oana Satz, Armin Jakob, Gerhard Hug, Hans Josef Kläui, Mathias Suess, Dieter |
| contents | Magnetic skyrmions are topologically protected local magnetic solitons that are promising for storage, logic or general computing applications. In this work, we demonstrate that we can use a skyrmion device based on [W/CoFeB/MgO] 1 0 multilayers for three-dimensional magnetic field sensing enabled by spin-orbit torques (SOT). We stabilize isolated chiral skyrmions and stripe domains in the multilayers, as shown by magnetic force microscopy images and micromagnetic simulations. We perform magnetic transport measurements to show that we can sense both in-plane and out-of-plane magnetic fields by means of a differential measurement scheme in which the symmetry of the SOT leads to cancelation of the DC offset. With the magnetic parameters obtained by vibrating sample magnetometry and ferromagnetic resonance measurements, we perform finite-temperature micromagnetic simulations, where we investigate the fundamental origin of the sensing signal. We identify the topological transformation between skyrmions, stripes and type-II bubbles that leads to a change in the resistance that is read-out by the anomalous Hall effect. Our study presents a novel application for skyrmions, where a differential measurement sensing concept is applied to quantify external magnetic fields paving the way towards more energy efficient applications in skyrmionics based spintronics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_16725 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Skyrmionic device for three dimensional magnetic field sensing enabled by spin-orbit torques Koraltan, Sabri Gupta, Rahul Pradeep, Reshma Peremadathil Kammerbauer, Fabian Kononenko, Iryna Prügl, Klemens Kirsch, Michael Aichner, Bernd Helbig, Santiago Bruckner, Florian Abert, Claas Mandru, Andrada Oana Satz, Armin Jakob, Gerhard Hug, Hans Josef Kläui, Mathias Suess, Dieter Mesoscale and Nanoscale Physics Magnetic skyrmions are topologically protected local magnetic solitons that are promising for storage, logic or general computing applications. In this work, we demonstrate that we can use a skyrmion device based on [W/CoFeB/MgO] 1 0 multilayers for three-dimensional magnetic field sensing enabled by spin-orbit torques (SOT). We stabilize isolated chiral skyrmions and stripe domains in the multilayers, as shown by magnetic force microscopy images and micromagnetic simulations. We perform magnetic transport measurements to show that we can sense both in-plane and out-of-plane magnetic fields by means of a differential measurement scheme in which the symmetry of the SOT leads to cancelation of the DC offset. With the magnetic parameters obtained by vibrating sample magnetometry and ferromagnetic resonance measurements, we perform finite-temperature micromagnetic simulations, where we investigate the fundamental origin of the sensing signal. We identify the topological transformation between skyrmions, stripes and type-II bubbles that leads to a change in the resistance that is read-out by the anomalous Hall effect. Our study presents a novel application for skyrmions, where a differential measurement sensing concept is applied to quantify external magnetic fields paving the way towards more energy efficient applications in skyrmionics based spintronics. |
| title | Skyrmionic device for three dimensional magnetic field sensing enabled by spin-orbit torques |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2403.16725 |