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  Nanoscale noncollinear spin textures in thin Films of a D2d Heusler compound

Sharma, A. K., Jena, J., Rana, K. G., Markou, A., Meyerheim, H. L., Mohseni, K., et al. (2021). Nanoscale noncollinear spin textures in thin Films of a D2d Heusler compound. Advanced Materials, 33(32): 2101323. doi:10.1002/adma.202101323.

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 Urheber:
Sharma, Ankit K.1, Autor           
Jena, Jagannath1, Autor           
Rana, Kumari Gaurav1, Autor
Markou, Anastasios2, Autor
Meyerheim, Holger L.3, Autor           
Mohseni, Katayoon1, Autor           
Srivastava, Abhay K.1, Autor           
Kostanovskiy, Ilya1, Autor           
Felser, Claudia2, Autor
Parkin, Stuart S. P.1, Autor                 
Affiliations:
1Nano-Systems from Ions, Spins and Electrons, Max Planck Institute of Microstructure Physics, Max Planck Society, ou_3287476              
2External Organizations, ou_persistent22              
3Department of Synthetic Materials and Functional Devices (SMFD), Max Planck Institute of Microstructure Physics, Max Planck Society, ou_3316580              

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 Zusammenfassung: Magnetic nano-objects, namely antiskyrmions and Bloch skyrmions, have been found to coexist in single-crystalline lamellae formed from bulk crystals of inverse tetragonal Heusler compounds with D2d symmetry. Here evidence is shown for magnetic nano-objects in epitaxial thin films of Mn2RhSn formed by magnetron sputtering. These nano-objects exhibit a wide range of sizes with stability with respect to magnetic field and temperature that is similar to single-crystalline lamellae. However, the nano-objects do not form well-defined arrays, nor is any evidence found for helical spin textures. This is speculated to likely be a consequence of the poorer homogeneity of chemical ordering in the thin films. However, evidence is found for elliptically distorted nano-objects along perpendicular crystallographic directions within the epitaxial films, which is consistent with elliptical Bloch skyrmions observed in single-crystalline lamellae. Thus, these measurements provide strong evidence for the formation of noncollinear spin textures in thin films of Mn2RhSn. Using these films, it is shown that individual nano-objects can be deleted using a local magnetic field from a magnetic tip and collections of nano-objects can be similarly written. These observations suggest a path toward the use of these objects in thin films with D2d symmetry as magnetic memory elements.

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 Datum: 2021-07-032021-08-12
 Publikationsstatus: Erschienen
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 Identifikatoren: ISI: 000669263400001
DOI: 10.1002/adma.202101323
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Titel: Advanced Materials
  Andere : Adv. Mater.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Weinheim : Wiley-VCH
Seiten: - Band / Heft: 33 (32) Artikelnummer: 2101323 Start- / Endseite: - Identifikator: ISSN: 0935-9648
CoNE: https://pure.mpg.de/cone/journals/resource/954925570855