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Breakdown of Shubnikov–de Haas oscillations in a short-period 1D lateral superlattice

Deutschmann, R. A. ; Lorke, A. ; Wegscheider, Werner ; Bichler, Max ; Abstreiter, Gerhard
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Date of publication of this fulltext: 30 Nov 2009 13:15


Abstract

Magnetic breakdown is observed in a two-dimensional electron system subject to a strong, atomically precise, one-dimensional potential with a period of 15 nm. The transition from closed to open electron orbits is studied in magnetotransport experiments by continuously changing the Fermi energy of the superlattice within and above the first miniband. Shubnikov–de Haas oscillations quench for Fermi ...

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