Carrier Tunneling in High Magnetic Fields
P.C.M. Christianen, I.E.M. Bruggink, J.C. Maan
High Field Magnet Laboratory and Research Institute for Materials, University of Nijmegen, Toernooiueld, 6525 ED Nijmegen, The Netherlands

and W. Van Der Vleuten
COBRA Interuniversity Research Institute, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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A magnetic field induced coupling is observed between the Landau levels with different quantum number of two GaAs quantum wells separated by a thin (Ga,Al)As tunnel barrier using magneto-photoluminescence-excitation spectroscopy. This coupling cannot be due to a resonance between single particle energy levels, and therefore an explanation is proposed in terms of the Coulomb interaction of magneto-excitons across the thin barrier.
DOI: 10.12693/APhysPolA.88.691
PACS numbers: 71.35.+z, 73.20.Dx, 78.20.Ls