Deutschmann RA, Wegscheider W, Rother M, Bichler M, Abstreiter G, Albrecht C, Smet JH. Quantum interference in artificial band structures.
PHYSICAL REVIEW LETTERS 2001;
86:1857-1860. [PMID:
11290266 DOI:
10.1103/physrevlett.86.1857]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2000] [Indexed: 05/23/2023]
Abstract
Magnetotransport experiments on two-dimensional electron systems with an atomically precise, one-dimensional potential modulation reveal striking quantum interference oscillations. Within a semiclassical framework, they are recognized either as self-interference along closed orbits, many of them rendered possible by magnetic breakdown between Fermi contour segments of the artificial band structure, or as interference-enhanced backscattering. The known commensurability oscillations appear as a special case of the latter mechanism.
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