Terahertz Anomalous Hall Effect in Mn2-xPtSn

Liu, Di; Pronin, Artem V.; Markou, Anastasios; Felser, Claudia; Dressel, Martin

doi:10.1109/IRMMW-THz.2019.8873730

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Terahertz Anomalous Hall Effect in Mn_2-xPtSn

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Markou, Anastasios
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Felser, Claudia
Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Liu, D., Pronin, A. V., Markou, A., Felser, C., & Dressel, M. (2019). Terahertz Anomalous Hall Effect in Mn_2-xPtSn. In 44th International Conference on Infrared, Millimeter, and Terahertz Waves (pp. 1-1). Paris. doi:10.1109/IRMMW-THz.2019.8873730.

Cite as: https://hdl.handle.net/21.11116/0000-0005-4E5A-0

Abstract

Coherent-source THz spectroscopy was employed for measuring the Faraday rotation angle of Mn { mathbf {2-x}}PtSn films (x = 0; 0.2). In the THz experiments, we observe clear signatures of an anomalous Hall state, while any indications of the so-called topological Hall effect recently observed in these magnetically disordered systems in dc measurements-are absent. This demonstrates that the charge scattering mechanisms, responsible for the two phenomena, possess very different time scales: the anomalous Hall state is governed by the scattering process with the rates above THz frequencies, while the electron interaction, providing the topological Hall, possesses very low characteristic time scales. © 2019 IEEE.