Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets
Magnetic skyrmions are topologically protected spin textures that exhibit fascinating physical behaviours and large potential in highly energy-efficient spintronic device applications. The main obstacles so far are that skyrmions have been observed in only a few exotic materials and at low temperatu...
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Springer Nature
2018
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| Online Access: | http://hdl.handle.net/1721.1/117740 https://orcid.org/0000-0001-8879-1203 https://orcid.org/0000-0001-7229-7980 https://orcid.org/0000-0002-8719-2652 https://orcid.org/0000-0001-9384-3928 |
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| author | Litzius, Kai Krüger, Benjamin Im, Mi-Young Richter, Kornel Krone, Andrea Reeve, Robert M. Weigand, Markus Lemesh, Ivan Mawass, Mohamad-Assaad Fischer, Peter Kläui, Mathias Woo, Seonghoon Caretta, Lucas Marcelo Mann, Maxwell Agrawal, Parnika Beach, Geoffrey Stephen |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Litzius, Kai Krüger, Benjamin Im, Mi-Young Richter, Kornel Krone, Andrea Reeve, Robert M. Weigand, Markus Lemesh, Ivan Mawass, Mohamad-Assaad Fischer, Peter Kläui, Mathias Woo, Seonghoon Caretta, Lucas Marcelo Mann, Maxwell Agrawal, Parnika Beach, Geoffrey Stephen |
| author_sort | Litzius, Kai |
| collection | MIT |
| description | Magnetic skyrmions are topologically protected spin textures that exhibit fascinating physical behaviours and large potential in highly energy-efficient spintronic device applications. The main obstacles so far are that skyrmions have been observed in only a few exotic materials and at low temperatures, and fast current-driven motion of individual skyrmions has not yet been achieved. Here, we report the observation of stable magnetic skyrmions at room temperature in ultrathin transition metal ferromagnets with magnetic transmission soft X-ray microscopy. We demonstrate the ability to generate stable skyrmion lattices and drive trains of individual skyrmions by short current pulses along a magnetic racetrack at speeds exceeding 100 m s-1as required for applications. Our findings provide experimental evidence of recent predictions and open the door to room-temperature skyrmion spintronics in robust thin-film heterostructures. |
| first_indexed | 2024-09-23T12:50:03Z |
| format | Article |
| id | mit-1721.1/117740 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T12:50:03Z |
| publishDate | 2018 |
| publisher | Springer Nature |
| record_format | dspace |
| spelling | mit-1721.1/1177402022-10-01T11:23:46Z Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets Litzius, Kai Krüger, Benjamin Im, Mi-Young Richter, Kornel Krone, Andrea Reeve, Robert M. Weigand, Markus Lemesh, Ivan Mawass, Mohamad-Assaad Fischer, Peter Kläui, Mathias Woo, Seonghoon Caretta, Lucas Marcelo Mann, Maxwell Agrawal, Parnika Beach, Geoffrey Stephen Massachusetts Institute of Technology. Department of Materials Science and Engineering Woo, Seonghoon Caretta, Lucas Marcelo Mann, Maxwell Agrawal, Parnika Beach, Geoffrey Stephen Magnetic skyrmions are topologically protected spin textures that exhibit fascinating physical behaviours and large potential in highly energy-efficient spintronic device applications. The main obstacles so far are that skyrmions have been observed in only a few exotic materials and at low temperatures, and fast current-driven motion of individual skyrmions has not yet been achieved. Here, we report the observation of stable magnetic skyrmions at room temperature in ultrathin transition metal ferromagnets with magnetic transmission soft X-ray microscopy. We demonstrate the ability to generate stable skyrmion lattices and drive trains of individual skyrmions by short current pulses along a magnetic racetrack at speeds exceeding 100 m s-1as required for applications. Our findings provide experimental evidence of recent predictions and open the door to room-temperature skyrmion spintronics in robust thin-film heterostructures. United States. Department of Energy. Office of Basic Energy Sciences (Award DE-SC0012371) 2018-09-13T14:51:32Z 2018-09-13T14:51:32Z 2016-02 2015-06 2018-09-13T14:31:07Z Article http://purl.org/eprint/type/JournalArticle 1476-1122 1476-4660 http://hdl.handle.net/1721.1/117740 Woo, Seonghoon et al. “Observation of Room-Temperature Magnetic Skyrmions and Their Current-Driven Dynamics in Ultrathin Metallic Ferromagnets.” Nature Materials 15, 5 (February 2016): 501–506 © 2016 Macmillan Publishers Limited https://orcid.org/0000-0001-8879-1203 https://orcid.org/0000-0001-7229-7980 https://orcid.org/0000-0002-8719-2652 https://orcid.org/0000-0001-9384-3928 http://dx.doi.org/10.1038/NMAT4593 Nature Materials Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Springer Nature Other repository |
| spellingShingle | Litzius, Kai Krüger, Benjamin Im, Mi-Young Richter, Kornel Krone, Andrea Reeve, Robert M. Weigand, Markus Lemesh, Ivan Mawass, Mohamad-Assaad Fischer, Peter Kläui, Mathias Woo, Seonghoon Caretta, Lucas Marcelo Mann, Maxwell Agrawal, Parnika Beach, Geoffrey Stephen Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets |
| title | Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets |
| title_full | Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets |
| title_fullStr | Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets |
| title_full_unstemmed | Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets |
| title_short | Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets |
| title_sort | observation of room temperature magnetic skyrmions and their current driven dynamics in ultrathin metallic ferromagnets |
| url | http://hdl.handle.net/1721.1/117740 https://orcid.org/0000-0001-8879-1203 https://orcid.org/0000-0001-7229-7980 https://orcid.org/0000-0002-8719-2652 https://orcid.org/0000-0001-9384-3928 |
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