Zernike seminar, A. Pimenov
|Wanneer:||ma 10-06-2013 11:00 - 12:00|
|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|
|Tel:||+31 50 363 3419|
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.