Two-Electron State in a Disordered 2D Island: Pairing Caused by the Coulomb Repulsion
- 12 August 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 77 (7) , 1354-1357
- https://doi.org/10.1103/physrevlett.77.1354
Abstract
We show the existence of bound two-electron states in an almost depleted two-dimensional island. These two-electron states are carried by special compact configurations of four single-electron levels. The existence of these states does not require phonon mediation, and is facilitated by the disorder-induced potential relief and by the electron-electron repulsion only. The density of two-electron states is estimated and their evolution with the magnetic field is discussed.Keywords
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This publication has 4 references indexed in Scilit:
- Pair Tunneling in Semiconductor Quantum DotsPhysical Review Letters, 1995
- Random successive growth model for pattern formationPhysical Review E, 1995
- N-electron ground state energies of a quantum dot in magnetic fieldPhysical Review Letters, 1993
- Single-electron capacitance spectroscopy of discrete quantum levelsPhysical Review Letters, 1992