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001019310 037__ $$aFZJ-2023-05284
001019310 041__ $$aEnglish
001019310 1001_ $$0P:(DE-Juel1)185906$$aMontanez Huaman, Liz Margarita$$b0$$ufzj
001019310 1112_ $$aMLZ User Meeting$$cMünchen$$d2023-12-04 - 2023-12-05$$gMLZ User Meeting$$wGermany
001019310 245__ $$aRoom Temperature Skyrmions in Pt/Co/Ta multilayers
001019310 260__ $$c2023
001019310 3367_ $$033$$2EndNote$$aConference Paper
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001019310 520__ $$aMagnetic skyrmions are topologically stabilized spin configurations on the nanoscale which makes them promising for next-generation information storage technologies and computing. [1,2] In magnetic multilay- ers, they can be stabilized at room temperature [3]. Skyrmions emerge due to an interplay between several magnetic contributions. Among them the interfacial Dzyaloshinskii-Moriya Interaction (DMI) drives the spins into non-collinear orientation, while the perpendicular magnetic anisotropy (PMA) favours the out-of-plane orientation and the shape anisotropy prefers in-plane spin orientation. Polycrystalline[Pt(40Å)/Co(x)/Ta(19Å)]N multilayerswerefabricatedinamolecularbeamepitaxysetupby thermal deposition on oxidized Si(001) substrates with a buffer layer of 47 Å Ta and a 30 Å Pt cap layer. The Co film thickness was varied between 5 Å and 21 Å, the number of repetitions varied between 8 and 10. Mag- netic force microscopy measurements reveal the existence of skyrmions at a Co thickness between 9 Å and 17 Å. We discuss results obtained from magnetic hysteresis, transport and neutron reflectometry measurements. The latter have been performed with the neutron reflectometer Platypus at ANSTO, Australia.References[1] A. Fert, V. Cros, and J. Sampaio, Nature Nanotech 8, (2013) 152.[2] K. Raab, M.A. Brems, G. Beneke, et al., Nat Commun 13, (2022) 6982.[3] S. Woo, K. Litzius, B. Krüger, M.-Y. Im, L. Caretta, K. Richter et al., Nat. Mat. 15 (2016) 501
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001019310 7001_ $$0P:(DE-Juel1)130754$$aKentzinger, Emmanuel$$b1$$ufzj
001019310 7001_ $$0P:(DE-HGF)0$$aCortie, David$$b2
001019310 7001_ $$0P:(DE-HGF)0$$aAhrens, Valentin$$b3
001019310 7001_ $$0P:(DE-HGF)0$$aGuasco, Laura$$b4
001019310 7001_ $$0P:(DE-HGF)0$$aKeller, Thomas$$b5
001019310 7001_ $$0P:(DE-HGF)0$$aSkoulatos, Markos$$b6
001019310 7001_ $$0P:(DE-HGF)0$$aBecherer, Markus$$b7
001019310 7001_ $$0P:(DE-Juel1)142052$$aPütter, Sabine$$b8$$eCorresponding author$$ufzj
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