Quantum interference effects in molecular nanoelectronics: theory and applications

DIPC Seminars

Speaker

Angelo Valli
Budapest University of Technology and Economics, Hungary

When

2024/05/13
12:00

Place

Donostia International Physics Center (In person seminar)

Host

Thomas Frederiksen

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It is well established that quantum interference (QI) effects in molecular junctions can dramatically change the electron transport properties. As QI effects can be tailored by a variety of chemical and physical mechanisms and can survive even at room temperature, they hold great potential for a wide raneg of nanoelectronics applications. I will give an overview of QI, identifying its distincive features and origin from a theoretical perspective [1], discussing how it can be predicted, and how it emerges in transport experiments. I will showcase instances where QI can be exploited to enhance the performance of chemical sensors [2], thermoelectric, and spintronic [3] devices.

References
[1] A. Valli, T. Fabian, F. Libisch, and R. Stadler, Carbon 214, 118358 (2023)
[2] Ö. Şengül, J. Völkle, A. Valli, and R. Stadler, Phys. Rev. B 105, 165428 (2022)
[3] A. Valli, A. Amaricci, V. Brosco, and M. Capone, Nano Lett. 18, 2158 (2018)