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Zernike seminar, A. Pimenov

When:Mo 10-06-2013 11:00 - 12:00
Where:5113.0202

Speaker: Dr. Andrei Pimenov
Affiliation: Vienna University of Technology, Austria
Title: Magnetooptics at terahertz frequencies: dynamic Hall effect and polarization control
Date: Monday, 10 June 2013
Time: Room 51.13.0202, Nijenborgh 4, Groningen
Location: FSE-Building 5111.0080
Host: Maxim Mostovo
Tel: +31 50 363 3419

ABSTRACT:

Modern magnetooptics at terahertz frequencies ranges from classical magnetoelectric coupling to high-frequency extensions of the Hall effect. The latter is especially important in investigations the electrodynamics of metallic and semiconducting materials. In some special cases the charge dynamics in external magnetic fields lead to such unusual results like giant Faraday effect or electric control of the polarization rotation.

As a concluding example, the magnetooptics of topological insulators will be discussed, i.e. insulating materials with topologically protected conducting surface. Along with a half integer quantum Hall effect the universal values of the Faraday and Kerr rotation are predicted for topological insulators.