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Tunneling spectroscopy of Landau band gaps at a quantum Hall line junction with adjustable Fermi level

DOI to cite this document:
Habl, Matthias ; Reinwald, Matthias ; Wegscheider, Werner ; Bichler, Max ; Abstreiter, Gerhard
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Date of publication of this fulltext: 05 Aug 2009 13:32


Two laterally adjacent quantum Hall systems separated by an extended barrier of a thickness on the order of the magnetic length possess a complex Landau band structure in the vicinity of the line junction. The energy dispersion is obtained from an exact quantum-mechanical calculation of the single electron eigenstates for the coupled system by representing the wave functions as a superposition of ...


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