Bose–Einstein condensation of indirect magnetoexcitons in a double quantum well

• Published in: Solid state communications Vol. 134; no. 1; pp. 69 - 72
• Main Authors: Boţan, V., Liberman, M.A.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Oxford Elsevier Ltd 01-04-2005; Elsevier
• Subjects: D. Bose–Einstein condensation; D. Magnetoexcitons; Exact sciences and technology; Physics; 71.35.Ee; D. Bose–Einstein condensation; D. Magnetoexcitons; 71.35.Ji; 71.35.Lk; Damping; Liquid state; Crystalline phase; Metallic conduction; Phase transformations; Magnetic field effects; Multiple quantum well; Electron hole pair; Electron liquid; 71.35.Ee D. Magnetoexcitons; Electronic structure; Excitons; Charge density waves; High field; Dipole moments; Bose-Einstein condensation; D. Bose-Einstein condensation
• ISSN: 0038-1098; 1879-2766
• DOI: 10.1016/j.ssc.2004.06.042

We study regimes of quantum degeneracy of electrons and holes in a two-dimensional spatially separated electron–hole system in a strong magnetic field. The phase transition from the excitonic dielectric liquid phase to the crystalline state of electrons and holes is predicted with the increase in interwell separation and damping rate. We show that the Bose–Einstein condensate of magnetoexcitons with large dipole moments and low damping rates is more preferable state compared to the metallic liquid phase of electron–hole pairs and the double charge-density wave state of electrons and holes.