Journal article:
Topological Hall effect in thin films of Mn<sub>1.5</sub>PtSn

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Date
October 18, 2018
Editors
Swekis, Peter
Markou, Anastasios
Kriegner, Dominik
Gayles, Jacob
Schlitz, Richard
Schnelle, Walter
Felser, Claudia
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Abstract
Spin chirality in metallic materials with non-coplanar magnetic order can give rise to a Berry phase induced topological Hall effect. Here, we report the observation of a large topological Hall effect in high-quality films of Mn1.5PtSn that were grown by means of magnetron sputtering on MgO(001). The topological Hall resistivity is present up to μ0H≈4T below the spin reorientation transition temperature, Ts=185 K. We find that the maximum topological Hall resistivity is of comparable magnitude as the anomalous Hall resistivity. Owing to the size, the topological Hall effect is directly evident prior to the customarily performed subtraction of magnetometry data. Further, we underline the robustness of the topological Hall effect in Mn2−xPtSn by extracting the effect for multiple stoichiometries (x=0.5,0.25,0.1) and film thicknesses (t=104,52,35 nm) with maximum topological Hall resistivities between 0.76 and 1.55μΩcm at 150 K.
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530 Physics
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Physical Review Materials ; 3 (2018), 1. - 013001(R). - American Physical Society (APS). - eISSN 2475-9953
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Cite This
ISO 690SWEKIS, Peter, Anastasios MARKOU, Dominik KRIEGNER, Jacob GAYLES, Richard SCHLITZ, Walter SCHNELLE, Sebastian T. B. GÖNNENWEIN, Claudia FELSER, 2018. Topological Hall effect in thin films of Mn1.5PtSn. In: Physical Review Materials. American Physical Society (APS). 3(1), 013001(R). eISSN 2475-9953. Available under: doi: 10.1103/PhysRevMaterials.3.013001
BibTex
@article{Swekis2018-10-18T18:44:40ZTopol-52285,
  year={2018},
  doi={10.1103/PhysRevMaterials.3.013001},
  title={Topological Hall effect in thin films of Mn<sub>1.5</sub>PtSn},
  number={1},
  volume={3},
  journal={Physical Review Materials},
  author={Swekis, Peter and Markou, Anastasios and Kriegner, Dominik and Gayles, Jacob and Schlitz, Richard and Schnelle, Walter and Gönnenwein, Sebastian T. B. and Felser, Claudia},
  note={Article Number: 013001(R)}
}
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