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Paper

Circular photogalvanic effects in topological insulator/ferromagnet hybrid structures

MPS-Authors
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Kleinke,  T.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons269320

Walowski,  J.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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2202.01522.pdf
(Preprint), 722KB

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Citation

Schumann, T., Kleinke, T., Braun, L., Meyer, N., Mussler, G., Kampmeier, J., et al. (in preparation). Circular photogalvanic effects in topological insulator/ferromagnet hybrid structures.


Cite as: https://hdl.handle.net/21.11116/0000-0009-EEFE-E
Abstract
We study laser driven spin-current effects at
ferromagnet/topological-insulator interfaces by two complementary experimental
approaches. The DC photocurrent is studied in ferromagnet/topological-insulator
bilayers with high spatial resolution. Dynamic interface currents are explored
via the emission of terahertz radiation emitted by these currents with high
temporal resolution. From our experiments, we reveal a lateral and dynamic
interaction of the ferromagnet and the topological insulator interface.