Submicrometer control of two-dimensional–two-dimensional magnetotunneling in double-well heterostructures
- 15 June 1993
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 47 (23) , 15741-15744
- https://doi.org/10.1103/physrevb.47.15741
Abstract
Interwell two-dimensional–two-dimensional (2D-2D) tunneling in a density-imbalanced double-well heterostructure is studied in an in-plane magnetic field using a gated-bridge technique which does not require independent contacts to the two 2D electron layers. Two sharp peaks in the tunneling conductance at B≤1.3 T and B=5–6 T are explained using a linear-response theory which incorporates finite scattering and is based on a field-induced momentum shift of the two quantum wells’ Fermi circles. A second gate is used to locally enhance tunneling on a submicrometer length scale.Keywords
This publication has 10 references indexed in Scilit:
- Effect of in-plane magnetic fields on the electronic structure and photoluminescence spectra in doped semiconductor quantum wellsSolid State Communications, 1992
- Probing a two-dimensional Fermi surface by tunnelingPhysical Review B, 1991
- Transport in transverse magnetic fields in resonant tunneling structuresPhysical Review B, 1990
- Momentum conservation in tunneling processes between barrier-separated 2D-electron-gas systemsPhysical Review Letters, 1989
- Resonant tunneling in crossed electric and magnetic fieldsApplied Physics Letters, 1989
- Magnetic field studies of negative differential conductivity in double barrier resonant tunnelling structures based on n-InP/(InGa)AsSolid-State Electronics, 1988
- Experimental determination of the edge depletion width of ahe two-dimensional electron gas in GaAs/AlxGa1−xAsApplied Physics Letters, 1987
- Magnetotransport in semiconductor superlatticesSemiconductor Science and Technology, 1987
- A transmission line model for silicided diffusions: Impact on the performance of VLSI circuitsIEEE Transactions on Electron Devices, 1982
- Statistical-Mechanical Theory of Irreversible Processes. I. General Theory and Simple Applications to Magnetic and Conduction ProblemsJournal of the Physics Society Japan, 1957