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Confined magnetic guiding orbit states

J. Reijniers·A. Matulis·K. Chang·F. M. Peeters·P. Vasilopoulos
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Abstract

We show how snake-orbit states which run along a magnetic edge can be confined electrically. We consider a two-dimensional electron gas (2DEG) confined into a quantum wire, subjected to a strong perpendicular and steplike magnetic field $B/-B$. Close to this magnetic step new, spatially confined bound states arise as a result of the lateral confinement and the magnetic field step. The number of states, with energy below the first Landau level, increases as $B$ becomes stronger or as the wire width becomes larger. These bound states can be understood as an interference between two counter-propagating one-dimensional snake-orbit states.

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J. Reijniers, A. Matulis, K. Chang, F. M. Peeters, P. Vasilopoulos. 2001-12-10. Confined magnetic guiding orbit states. https://doi.org/10.1209/epl%2Fi2002-00189-8

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