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Topological Hall Signatures of Two Chiral Spin Textures Hosted in a Single Tetragonal Inverse Heusler Thin Film

[Image: see text] Magnetic skyrmions and antiskyrmions are observed in material classes with different crystal symmetries, where the Dzyaloshinskii–Moriya interaction stabilizes either skyrmions or antiskyrmions. Here, we report the observation of two distinct peaks in the topological Hall effect in...

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Detalles Bibliográficos
Autores principales: Sivakumar, Pranava K., Göbel, Börge, Lesne, Edouard, Markou, Anastasios, Gidugu, Jyotsna, Taylor, James M., Deniz, Hakan, Jena, Jagannath, Felser, Claudia, Mertig, Ingrid, Parkin, Stuart S. P.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7596786/
https://www.ncbi.nlm.nih.gov/pubmed/32986403
http://dx.doi.org/10.1021/acsnano.0c05413
Descripción
Sumario:[Image: see text] Magnetic skyrmions and antiskyrmions are observed in material classes with different crystal symmetries, where the Dzyaloshinskii–Moriya interaction stabilizes either skyrmions or antiskyrmions. Here, we report the observation of two distinct peaks in the topological Hall effect in a thin film of Mn(2)RhSn. Utilizing a phenomenological approach and electronic transport simulations, these topological Hall effect features are attributed to be direct signatures of two topologically distinct chiral spin objects, namely, skyrmions and antiskyrmions. Topological Hall effect studies allow us to determine the existence of these two topological objects over a wide range of temperature and magnetic fields. In particular, we find skyrmions to be stable at low temperatures, suggesting the increased importance of dipolar interactions.