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  Role of Magnetic Exchange Interactions in Chiral-Type Hall Effects of Epitaxial MnxPtSn Films

Swekis, P., Gayles, J., Kriegner, D., Fecher, G. H., Sun, Y., Goennenwein, S. T. B., et al. (2021). Role of Magnetic Exchange Interactions in Chiral-Type Hall Effects of Epitaxial MnxPtSn Films. ACS Applied Electronic Materials, 3(3), 1323-1333. doi:10.1021/acsaelm.0c01104.

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Swekis, Peter1, Autor           
Gayles, Jacob1, Autor           
Kriegner, Dominik1, Autor           
Fecher, Gerhard H.2, Autor           
Sun, Yan1, Autor           
Goennenwein, Sebastian T. B.3, Autor
Felser, Claudia4, Autor           
Markou, Anastasios1, Autor           
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2Gerhard Fecher, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863431              
3External Organizations, ou_persistent22              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Zusammenfassung: Tetragonal Mn-based Heusler compounds feature multiple exchange interactions resulting in exotic topological magnetic textures, such as antiskyrmions that are complimented by the chiral-type Hall effects. This makes the material class particularly interesting for device applications. We report the relation of the magnetic exchange interactions to the thickness and Mn concentration of MnxPtSn thin films, grown by magnetron cosputtering. The competition of the magnetic exchange interactions determines the finite temperature magnetic texture and thereby the chiral-type Hall effects in external magnetic fields. We investigate the magnetic and transport properties as a function of magnetic field and temperature. We focus on the anomalous and chiral-type Hall effects and the behavior of the dc magnetization in relation to chiral spin textures. We further determine the stable crystal phase for a relative Mn concentration between 1.5 and 1.85 in the I (4) over bar 2d structure. We observe a spin-reorientation transition in all compounds studied, originating from the competition of exchange interactions on different Mn sublattices. We discuss our results in terms of exchange interactions and compare them with theoretical atomistic spin calculations.

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Sprache(n): eng - English
 Datum: 2021-02-152021-02-15
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: ISI: 000634556600032
DOI: 10.1021/acsaelm.0c01104
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Titel: ACS Applied Electronic Materials
  Andere : ACS appl. electron. mater.
  Kurztitel : ACS AEM
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Washington, DC : American Chemical Socitey
Seiten: - Band / Heft: 3 (3) Artikelnummer: - Start- / Endseite: 1323 - 1333 Identifikator: ISSN: 2637-6113
CoNE: https://pure.mpg.de/cone/journals/resource/2637-6113