Disentangling Complex Current Pathways in Metallic Nanostructures by Terahertz Spectroscopy
- Resource Type
- Conference
- Authors
- Beermann, Nicolas S.; Fabretti, Savio; Rott, Karsten; Hafez, Hassan A.; Reiss, Gunter; Turchinovich, Dmitry
- Source
- 2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Infrared, Millimeter and Terahertz Waves (IRMMW-THz),2022 47th International Conference on. :1-2 Aug, 2022
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Spectroscopy
Analytical models
Conductivity
Nanoscale devices
Nanostructures
Time-domain analysis
- Language
- ISSN
- 2162-2035
We demonstrate a sensitive contactless characterization method based on terahertz (THz) time-domain spectroscopy to analyze the current pathways in nano-metallic devices. Our analysis of the THz conductivity spectra of a nano-metallic Ru/Co bilayer, supported by a resistor-network model, allows for the determination of the complex-valued electronic transparency coefficients both of the metallic bilayer and the internal nanointerface. Hence, the contributions of the internal current pathways and the current splitting at the interface have been quantified.