Terahertz Probing of Nanoscopic Current Distribiution in Bilayer Nanostructures of Light, Heavy, and Ferromagnetic Metals
Beermann N, Fabretti S, Hafez HH, Syskaki M-A, Kononenko I, Jakob G, Kläui M, Turchinovich D (2024)
In: 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). International Conference on Infrared Millimeter and Terahertz Waves. New York: IEEE.
Konferenzbeitrag
| Veröffentlicht | Englisch
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Autor*in
Beermann, NicolasUniBi;
Fabretti, SavioUniBi 
;
Hafez, Hassan H.;
Syskaki, Maria-Andromachi;
Kononenko, Iryna;
Jakob, Gerhard;
Kläui, Mathias;
Turchinovich, DmitryUniBi
;
Hafez, Hassan H.;
Syskaki, Maria-Andromachi;
Kononenko, Iryna;
Jakob, Gerhard;
Kläui, Mathias;
Turchinovich, DmitryUniBiEinrichtung
Abstract / Bemerkung
We investigated the electronic transport across internal interfaces in various metallic bilayer nanostructures using the contact-free, all-optical technique of THz time-domain spectroscopy. The studies focuses on Ru/Co, Ru/Pt, and Ru/Al bilayers as well as their individual constituent metals. Here Ru represents a typical d-band metal, Co an archetypal ferromagnetic material, and Pt and Al stand as archetypal heavy and light metals, respectively. The THz conductivity data are analyzed using the free carrier conduction Drude model, and the current distribution within the bilayer is described using an effective resistor network model. Depending on the bilayer composition, the electronic transparency of buried internal nanointerface of a bilayer nanostructure was found to range between 0 and 45%. For the Ru/Co bilayer, a strong temperature dependency of the interface coefficient was determined.
Stichworte
terahertz;
metallic nanostructures;
conductivity;
interface;
transport
Erscheinungsjahr
2024
Titel des Konferenzbandes
2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Serien- oder Zeitschriftentitel
International Conference on Infrared Millimeter and Terahertz Waves
Konferenz
49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Konferenzort
Perth, Australia
Konferenzdatum
2024-09-01 – 2024-09-06
ISBN
979-8-3503-7033-1,
979-8-3503-7032-4
ISSN
2162-2027
Page URI
https://pub.uni-bielefeld.de/record/2999505
Zitieren
Beermann N, Fabretti S, Hafez HH, et al. Terahertz Probing of Nanoscopic Current Distribiution in Bilayer Nanostructures of Light, Heavy, and Ferromagnetic Metals. In: 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). International Conference on Infrared Millimeter and Terahertz Waves. New York: IEEE; 2024.
Beermann, N., Fabretti, S., Hafez, H. H., Syskaki, M. - A., Kononenko, I., Jakob, G., Kläui, M., et al. (2024). Terahertz Probing of Nanoscopic Current Distribiution in Bilayer Nanostructures of Light, Heavy, and Ferromagnetic Metals. 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), International Conference on Infrared Millimeter and Terahertz Waves New York: IEEE. https://doi.org/10.1109/IRMMW-THz60956.2024.10697487
Beermann, Nicolas, Fabretti, Savio, Hafez, Hassan H., Syskaki, Maria-Andromachi, Kononenko, Iryna, Jakob, Gerhard, Kläui, Mathias, and Turchinovich, Dmitry. 2024. “Terahertz Probing of Nanoscopic Current Distribiution in Bilayer Nanostructures of Light, Heavy, and Ferromagnetic Metals”. In 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). International Conference on Infrared Millimeter and Terahertz Waves. New York: IEEE.
Beermann, N., Fabretti, S., Hafez, H. H., Syskaki, M. - A., Kononenko, I., Jakob, G., Kläui, M., and Turchinovich, D. (2024). “Terahertz Probing of Nanoscopic Current Distribiution in Bilayer Nanostructures of Light, Heavy, and Ferromagnetic Metals” in 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) International Conference on Infrared Millimeter and Terahertz Waves (New York: IEEE).
Beermann, N., et al., 2024. Terahertz Probing of Nanoscopic Current Distribiution in Bilayer Nanostructures of Light, Heavy, and Ferromagnetic Metals. In 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). International Conference on Infrared Millimeter and Terahertz Waves. New York: IEEE.
N. Beermann, et al., “Terahertz Probing of Nanoscopic Current Distribiution in Bilayer Nanostructures of Light, Heavy, and Ferromagnetic Metals”, 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), International Conference on Infrared Millimeter and Terahertz Waves, New York: IEEE, 2024.
Beermann, N., Fabretti, S., Hafez, H.H., Syskaki, M.-A., Kononenko, I., Jakob, G., Kläui, M., Turchinovich, D.: Terahertz Probing of Nanoscopic Current Distribiution in Bilayer Nanostructures of Light, Heavy, and Ferromagnetic Metals. 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). International Conference on Infrared Millimeter and Terahertz Waves. IEEE, New York (2024).
Beermann, Nicolas, Fabretti, Savio, Hafez, Hassan H., Syskaki, Maria-Andromachi, Kononenko, Iryna, Jakob, Gerhard, Kläui, Mathias, and Turchinovich, Dmitry. “Terahertz Probing of Nanoscopic Current Distribiution in Bilayer Nanostructures of Light, Heavy, and Ferromagnetic Metals”. 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). New York: IEEE, 2024. International Conference on Infrared Millimeter and Terahertz Waves.
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