Energy levels in quantum wires studied by tunneling and magnetotransport experiments
- 16 July 1990
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 57 (3) , 261-263
- https://doi.org/10.1063/1.103708
Abstract
We have studied the one-dimensional (1D) subband energies in quantum wires fabricated on GaAs-GaAlAs heterostructures. Magnetoresistance oscillations were used to investigate the influence of an applied gate voltage on the 1D subband energies for various geometrical widths of the fabricated quantum wires. For the first time, we measure directly the 1D subband energies by tunneling spectroscopy. As a result, both the confining potential and the influence of an additional magnetic field are well described by a simple harmonic oscillator model.Keywords
This publication has 18 references indexed in Scilit:
- Boundary scattering in quantum wiresPhysical Review Letters, 1989
- Magnetic depopulation of electronic subbands in a narrow two-dimensional channelSemiconductor Science and Technology, 1989
- Quantum size effects in GaAs-Ga1-xAlxAs heterojunction wiresSemiconductor Science and Technology, 1989
- One-dimensional subbands and mobility modulation in GaAs/AlGaAs quantum wiresApplied Physics Letters, 1989
- Quasi-one-dimensional electron states in a split-gate GaAs/AlGaAs heterostructureSurface Science, 1988
- Characterization of very narrow quasi-one-dimensional quantum channelsPhysical Review B, 1988
- Quenching of the Hall Effect in a One-Dimensional WirePhysical Review Letters, 1987
- Magnetic depopulation of electronic subbands in low-dimensional semiconductor systems and their influence on the electrical resistivity and Hall effectSemiconductor Science and Technology, 1986
- Magnetic Depopulation of 1D Subbands in a Narrow 2D Electron Gas in a GaAs:AlGaAs HeterojunctionPhysical Review Letters, 1986
- Electron states in narrow gate-induced channels in SiApplied Physics Letters, 1986