Electron mobility in strained nanowires probed by THz spectroscopy

Electron mobility in strained nanowires probed by THz spectroscopy

We utilize optical pump - THz probe spectroscopy to estimate electron mobility in strained GaAs/(In,Al)As core/shell nanowires. Our results demonstrate that strain-induced reduction of the effective electron mass leads to a remarkable increase of the mobility. The data analysis indicates an importan...

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Bibliographic Details
Published in:2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) pp. 1 - 2
Main Authors: Balaghi, L., Shan, S., Fotev, I., Rana, R., Moebus, F., Venanzi, T., Hubner, R., Mikolajick, T., Schneider, H., Helm, M., Dimakis, E., Pashkin, A.
Format: Conference Proceeding
Language:English
Published: IEEE 28-08-2022
Subjects:
Data analysis
Electron mobility
Electron optics
Nonhomogeneous media
Optical pumping
Plasmons
Spectroscopy
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Summary:We utilize optical pump - THz probe spectroscopy to estimate electron mobility in strained GaAs/(In,Al)As core/shell nanowires. Our results demonstrate that strain-induced reduction of the effective electron mass leads to a remarkable increase of the mobility. The data analysis indicates an important role of the inhomogeneous plasmon broadening that may affect THz spectra of dense ensembles of nanowires.
ISSN:2162-2035
DOI:10.1109/IRMMW-THz50927.2022.9895645