Phase-coherent electrons in a finite antidot lattice
Authors:
- 15 March 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 49 (12) , 8510-8513
Abstract
Antidot lattices with a finite number of periods are fabricated such that the size of the total system is smaller than the phase-coherence length of the electrons at low temperatures. The magnetoresistance is dominated by reproducible quantum fluctuations as well as by classical commensurability oscillations. We attribute these fluctuations to electrons that travel phase coherently over the entire system and interfere with each other under the influence of the geometry of the potential landscape. The presence of Aharonov-Bohm oscillations is identified and related to the existence of classically pinned electron orbits.Keywords
This publication has 14 references indexed in Scilit:
- Quantized periodic orbits in large antidot arraysPhysical Review Letters, 1993
- Selective probing of ballistic electron orbits in rectangular antidot latticesPhysical Review B, 1993
- Aharonov-Bohm effect in antidot structuresPhysica B: Condensed Matter, 1993
- Magnetoresistance due to chaos and nonlinear resonances in lateral surface superlatticesPhysical Review Letters, 1992
- Localization in GaAs electron-dots and anti-dotsSuperlattices and Microstructures, 1991
- Electron pinball and commensurate orbits in a periodic array of scatterersPhysical Review Letters, 1991
- Magnetotransport through an antidot lattice in GaAs-As heterostructuresPhysical Review B, 1990
- Fabrication of quasi-zero-dimensional submicron dot array and capacitance spectroscopy in a GaAs/AlGaAs heterostructureApplied Physics Letters, 1989
- Observation of the Aharonov-Bohm effect forτ>1Physical Review Letters, 1987
- Significance of Electromagnetic Potentials in the Quantum TheoryPhysical Review B, 1959