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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, pp. 1-7. doi:10.1002/adma.202101323.

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 Creators:
Sharma, Ankit K.1, Author
Jena, Jagannath1, Author
Rana, Kumari Gaurav1, Author
Markou, Anastasios2, Author           
Meyerheim, Holger L.1, Author
Mohseni, Katayoon1, Author
Srivastava, Abhay K.1, Author
Kostanoskiy, Ilya1, Author
Felser, Claudia3, Author           
Parkin, Stuart S. P.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
3Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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Free keywords: Heusler thin films, Mn 2RhSn, noncollinear spin textures, skyrmions, spintronics, Band structure, Crystal symmetry, Epitaxial films, Magnetic fields, Magnetic storage, Manganese alloys, Rhodium alloys, Ternary alloys, Tin alloys, Bulk crystals, Chemical order, Crystallographic directions, Epitaxial thin films, Heusler compound, Local magnetic field, Magnetic memory, Single-crystalline, Textures
 Abstract: 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. © 2021 The Authors. Advanced Materials published by Wiley-VCH GmbH

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Language(s): eng - English
 Dates: 2021-07-032021-07-03
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/adma.202101323
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Title: Advanced Materials
  Other : Adv. Mater.
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 33 (32) Sequence Number: 2101323 Start / End Page: 1 - 7 Identifier: ISSN: 0935-9648
CoNE: https://pure.mpg.de/cone/journals/resource/954925570855