Cold e-h Plasmas

Excitons in dense magnetoplasmas



Cooling of a dense plasma to low temperatures (~ 50K ~ TdB at n ~ 1012 cm-2) was achieved in single InGaAs/InP QW structures due to relatively long lifetimes.

Excitons form at the Fermi level of a dense electron-hole magnetoplasma in single QWs.

L.V. Butov, V.D. Kulakovskii, E.I. Rashba, Excitons and deexcitons in a neutral 2D magnetoplasma with an integer filling of Landau levels: experiment and theory, Pis'ma Zh. Eksp. Teor. Fiz. 53, 104 (1991) [Sov. Phys. JETP Lett. 53, 109 (1991)].

L.V. Butov, V.D. Kulakovskii, G.E.W. Bauer, A. Forchel, D. Grützmacher, Excitons in dense two-dimensional electron-hole magnetoplasmas, Phys. Rev. B 46, 12765 (1992).

L.V. Butov, V.D. Kulakovskii, A. Forchel, Spin splitting renormalization in the neutral dense magnetoplasma in InGaAs/InP quantum wells, Phys. Rev. B 48, 17933 (1993).