Electron Focusing in a Widely Tapered Cross Junction
- 1 July 1991
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 30 (7A), L1186-1188
- https://doi.org/10.1143/jjap.30.l1186
Abstract
Magnetic electron focusing in a two-dimensional electron gas within a widely tapered cross junction is observed. The cross junction consists of a square-shaped open space and four narrow probes attached to the corners. The periodicity of peaks in the Hall and bend resistances is in good agreement with the focusing field for an electron injected at 90° to the boundary connecting the injection and collection probes. Numerical simulation, taking electrons as classical billiard balls, explains most of the experimental features.Keywords
This publication has 9 references indexed in Scilit:
- Ballistic electron transport beyond 100 microm IN 2D electron systemsSurface Science, 1990
- Electron focusing with multiparallel one-dimensional channels made by focused ion beamApplied Physics Letters, 1990
- Billiard model of a ballistic multiprobe conductorPhysical Review Letters, 1989
- Quenching of the Hall resistance in ballistic microstructures: A collimation effectPhysical Review Letters, 1989
- Influence of geometry on the Hall effect in ballistic wiresPhysical Review Letters, 1989
- Nonlocal quantum transport in narrow multibranched electron wave guide of GaAs-AlGaAsSolid State Communications, 1988
- Coherent Electron Focussing in a Two-Dimensional Electron GasEurophysics Letters, 1988
- Quenching of the Hall Effect in a One-Dimensional WirePhysical Review Letters, 1987
- Four-Terminal Phase-Coherent ConductancePhysical Review Letters, 1986