Two-electron states localized by charged acceptors in GaAs/GaAlAs quantum wells in ultra-quantum regime of magnetic fields

I Bisotto (1) , Christophe Chaubet (1) , Andre Raymond (1) , W Zawadzki (2) , M Kubisa (3)

1 L2C - Laboratoire Charles Coulomb
2 PAN - Polska Akademia Nauk = Polish Academy of Sciences = Académie polonaise des sciences
3 UWr - University of Wrocław [Poland]

We demonstrate theoretically that bound acceptors states of a two dimensional electron gas in quantizing magnetic field can localize two electrons on a same site. We calculate the energies and wave functions of the second quantum state, and show that they are close to calculations of the first quantum state found previously.

Domaines: Physique Quantique [quant-ph]; Systèmes mésoscopiques et effet Hall quantique [cond-mat.mes-hall]

I Bisotto, Christophe Chaubet, Andre Raymond, W Zawadzki, M Kubisa. Two-electron states localized by charged acceptors in GaAs/GaAlAs quantum wells in ultra-quantum regime of magnetic fields. EP2DS: 20th International Conference on Electronic Properties of Two-Dimensional Systems (2013), Jul 2013, Wroclaw, Poland. ⟨hal-00943352⟩