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Two-electron state in a disordered 2D island: pairing caused by the Coulomb repulsion

M. E. Raikh·L. I. Glazman·L. E. Zhukov
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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.

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M. E. Raikh, L. I. Glazman, L. E. Zhukov. 1995-12-18. Two-electron state in a disordered 2D island: pairing caused by the Coulomb repulsion. https://doi.org/10.1103/physrevlett.77.1354

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