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PGI-1 Talk: Dr. Stefano Bosco

Quantum Hall effect gyrators

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18 Jan 2017 11:30
venue
PGI Lecture Hall

Institute for Quantum Information, RWTH Aachen University
Jülich-Aachen Research Alliance (JARA), Fundamentals of Future Information Technologies

Abstract:

Non-reciprocal devices, such as gyrators and circulators, are key components for modern microwave engineering. In the talk, I will present a microscopic model that describes the response of gyrators employing 2-dimensional materials in the quantum Hall regime capacitively coupled to external electrodes. As the conduction in these devices is associated to driven edge magnetopasmons (EMP), I will first focus on the EMP problem, which is tackled by using the linear response theory in the random phase approximation, and then I will analyze the response of the device. Interestingly, the response presents new resonant features, which were not foreseen from previous models.

Contact

Prof. Dr. Stefan Blügel
Phone: +49 2461 61-4249
Fax: +49 2461 61-2850
email: s.bluegel@fz-juelich.de