Hauptseite > Publikationsdatenbank > Emergence of zero-field non-synthetic single and catenated antiferromagnetic skyrmions in thin films > print

001     1006622
005     20240226075500.0
037 _ _ |a FZJ-2023-01755
041 _ _ |a English
100 1 _ |a Aldarawsheh, Amal
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111 2 _ |a DPG-Frühjahrstagungen
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|c Regensburg
|d 2022-09-04 - 2022-09-09
|w Germany
245 _ _ |a Emergence of zero-field non-synthetic single and catenated antiferromagnetic skyrmions in thin films
260 _ _ |c 2022
336 7 _ |a Conference Paper
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520 _ _ |a Antiferromagnetic (AFM) skyrmions are envisioned as ideal localized topologicalmagnetic bits in future information technologies. In contrast to ferromagnetic (FM)skyrmions, they are immune to the skyrmion Hall effect [1, 2], might offer potential terahertzdynamics [3] while being insensitive to external magnetic fields and dipolar interactions.Although observed in synthetic AFM structures [4] and as complex meronic textures inintrinsic AFM bulk materials [5, 6], their realization in non-synthetic AFM films, of crucialimportance in racetrack concepts, has been elusive. In this work [7], we unveil their presencein a row-wise AFM Cr film deposited on PdFe bilayer grown on fcc Ir(111) surface. Usingfirst-principles, we demonstrate the emergence of single and strikingly interpenetratingcatenated AFM skyrmions, which can coexist with the rich inhomogeneous exchange field,including that of FM skyrmions, hosted by PdFe. Besides the identification of an idealplatform of materials for intrinsic AFM skyrmions, we anticipate the uncovered knottedsolitons to be promising building blocks in AFM spintronics.[1] Barker and Tretiakov, Physical Review Letters 116, 147203 (2016).[2] Zhang, Zhou and Ezawa, Scientific Reports 6, 1 (2016).[3] Gomonay, Baltz, Brataas, Tserkovnyak, Nature Physics 14, 213 (2018).[4] Legrand et al., Nature Materials 19, 34 (2020).[5] Gao et al., Nature 586, 37 (2020).[6] Jani et al., Nature 590, 74 (2021).[7] Aldarawsheh et al., ArXiv:2202.12090 (2022).
536 _ _ |a 5211 - Topological Matter (POF4-521)
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700 1 _ |a Fernandes, Imara Lima
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700 1 _ |a Brinker, Sascha
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700 1 _ |a Sallermann, Moritz
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700 1 _ |a MuayadAbusaa5
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700 1 _ |a Blügel, Stefan
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700 1 _ |a Lounis, Samir
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909 C O |o oai:juser.fz-juelich.de:1006622
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910 1 _ |a Forschungszentrum Jülich
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913 1 _ |a DE-HGF
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914 1 _ |y 2023
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920 1 _ |0 I:(DE-Juel1)IAS-1-20090406
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