Laterally coupled and field-induced quantum Hall systems

URN to cite this document:: urn:nbn:de:bvb:355-epub-20454
DOI to cite this document:: 10.5283/epub.2045

Habl, Matthias ; Wegscheider, Werner

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Date of publication of this fulltext: 05 Aug 2009 13:20

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Abstract

A quantum Hall system which is divided into two laterally coupled subsystems by means of a tunneling barrier exhibits a complex Landau level dispersion. Magnetotunneling spectroscopy is employed to investigate the small energy gaps which separate subsequent Landau bands. The control on the Fermi level permits to trace the anticrossings for varying magnetic fields. The band structure calculation ...