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Zener Tunneling Between Landau Orbits in a High-Mobility Two-Dimensional Electron Gas

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 نشر من قبل Changli Yang
 تاريخ النشر 2002
  مجال البحث فيزياء
والبحث باللغة English
 تأليف C. L. Yang




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Magnetotransport in a laterally confined two-dimensional electron gas (2DEG) can exhibit modified scattering channels owing to a tilted Hall potential. Transitions of electrons between Landau levels with shifted guiding centers can be accomplished through a Zener tunneling mechanism, and make a significant contribution to the magnetoresistance. A remarkable oscillation effect in weak field magnetoresistance has been observed in high-mobility 2DEGs in GaAs-AlGa$_{0.3}$As$_{0.7}$ heterostructures, and can be well explained by the Zener mechanism.



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