Confinement and single-electron tunneling in Schottky-gated, laterally squeezed double-barrier quantum-well heterostructures
- 23 March 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 68 (12), 1896-1899
- https://doi.org/10.1103/physrevlett.68.1896
Abstract
The conductance of laterally confined double-barrier quantum-well resonant-tunneling heterostructures is investigated. The confinement is provided by a Schottky gate and can be varied in a continuous way, giving direct proof of the quantum-size effect. Data for dots with nominal diameters in the submicrometer range are reported. Possible evidence for a modulation of the Coulomb blockade by quantum confinement is presented.Keywords
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