Regensburg 2010 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 37: MLT: Poster Session

TT 37.28: Poster

Thursday, March 25, 2010, 14:00–18:00, Poster A

Wave-packet propagation in graphene — •Viktor Krückl¹ and Tobias Kramer^1,2 — ¹Institut für Theoretische Physik, Universität Regensburg, 93040 Regensburg — ²Department of Physics, Harvard University, Cambridge, MA 02138, USA

The unique electronic structure of graphene generates remarkable phenomena like the anomalous quantum Hall effect or the zitterbewegung. Our main focus are time-dependent effects in semiconductors with a major emphasis on zero gap semiconductors like graphene. We investigate the time evolution of wave packets in a perpendicular magnetic field and report about the collapses and revivals of initially localized cyclotron wave packets[1]. For complex setups we present an algorithm which is capable of solving the time-dependent scattering problem in arbitrary shaped potentials and magnetic fields. With this we study the scattering of wave-packets on ripples and impurities.

[1] Viktor Krueckl and Tobias Kramer, New J. Phys. 11 093010 (2009)