Dresden 2009 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 17: Quantum wires: Optical and transport properties

HL 17.10: Vortrag

Dienstag, 24. März 2009, 12:45–13:00, BEY 154

Classical ballistic transport in a triangular shaped cavity — •Martin Richter and Roland Ketzmerick — Institut für Theoretische Physik, Technische Universität Dresden, 01062 Dresden, Germany

Recent magneto-resistance measurements on semiconductor heterostructures with a triangular shaped gate revealed an unexpected splitting of a commensurability peak [D. Maryenko et al., unpublished]. We explain this splitting in the context of classical ballistic transport. The importance of the phase-space structure, width of the openings, and softness of the potential is stressed.