001006620 001__ 1006620
001006620 005__ 20240226075500.0
001006620 037__ $$aFZJ-2023-01753
001006620 041__ $$aEnglish
001006620 1001_ $$0P:(DE-Juel1)185991$$aAldarawsheh, Amal$$b0$$eCorresponding author$$ufzj
001006620 1112_ $$aInternational Colloquium on Magnetic Films and Surfaces$$cOkinawa$$d2022-07-10 - 2022-07-15$$gICMFS2022$$wJapan
001006620 245__ $$aEmergence  of  zero-field  non-synthetic  single  and  catenated antiferromagnetic skyrmions in thin films
001006620 260__ $$c2022
001006620 3367_ $$033$$2EndNote$$aConference Paper
001006620 3367_ $$2DataCite$$aOther
001006620 3367_ $$2BibTeX$$aINPROCEEDINGS
001006620 3367_ $$2DRIVER$$aconferenceObject
001006620 3367_ $$2ORCID$$aLECTURE_SPEECH
001006620 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1681970854_3461$$xOther
001006620 520__ $$aAntiferromagnetic (AFM) skyrmions are envisioned as ideal localized topological magneticbits in future information technologies.  In contrast to ferromagnetic (FM) skyrmions, they are immune to the skyrmion Hall effect [1, 2], might offer potential terahertz dynamics [3] while being  insensitive  to  external  magnetic  fields  and  dipolar  interactions. Although  observed in synthetic AFM structures [4] and as complex meronic textures in intrinsic AFM bulk materials [5, 6] , their realization in non-synthetic AFM films, of crucial importance in racetrack concepts, has been elusive.  Here, we unveil their presence in a row-wise AFM Cr film deposited on PdFe bilayer grown on fcc Ir(111) surface. Using first principles, we demonstrate the emergence of single and strikingly interpenetrating catenated AFM skyrmions,  which can co-exist with the rich inhomogeneous exchange field, including that of FM skyrmions, hosted by PdFe. Besides the identification of an ideal platform of materials for intrinsic AFM skyrmions, we anticipate the uncovered knotted solitons to be promising building blocks in AFM spintronics.         [1] Barker, J. & Tretiakov, O. A., Physical review letters (2016).         [2] Zhang, X., Zhou, Y. & Ezawa, M., Scientific reports (2016).         [3] Gomonay, O., Baltz, V., Brataas, A. & Tserkovnyak, Y. Nature Physics (2018).         [4] Legrand, W., Maccariello, D., Ajejas, F., Collin, S., Vecchiola, A., Bouzehouane,               K., R eyren, N., Cros, V. & Fert, A., Nature materials (2020).         [5] Gao, S., Rosales, H., Gómez Albarracín, F. A., Tsurkan, V., Kaur, G., Fennell, T., ...                & Zaharko, O., Nature  (2020).         [6] Jani, H., Lin, J. C., Chen, J., Harrison, J., Maccherozzi, F., Schad, J., ... & Radaelli,                P. G., Nature (2021).
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001006620 7001_ $$0P:(DE-HGF)0$$aFernandes, Imara Lima$$b1
001006620 7001_ $$0P:(DE-Juel1)168211$$aBrinker, Sascha$$b2
001006620 7001_ $$0P:(DE-Juel1)174583$$aSallermann, Moritz$$b3$$ufzj
001006620 7001_ $$0P:(DE-HGF)0$$aMuayadAbusaa5$$b4
001006620 7001_ $$0P:(DE-Juel1)130548$$aBlügel, Stefan$$b5$$ufzj
001006620 7001_ $$0P:(DE-Juel1)130805$$aLounis, Samir$$b6$$eCorresponding author$$ufzj
001006620 8564_ $$uhttps://juser.fz-juelich.de/record/1006620/files/Japan_conference%20%5BAuto-saved%5D.mp4$$yRestricted
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001006620 9131_ $$0G:(DE-HGF)POF4-521$$1G:(DE-HGF)POF4-520$$2G:(DE-HGF)POF4-500$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-5211$$aDE-HGF$$bKey Technologies$$lNatural, Artificial and Cognitive Information Processing$$vQuantum Materials$$x0
001006620 9141_ $$y2023
001006620 920__ $$lyes
001006620 9201_ $$0I:(DE-Juel1)IAS-1-20090406$$kIAS-1$$lQuanten-Theorie der Materialien$$x0
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