Comment on ‘‘Phase transtition of an exciton system in GaAs coupled quantum wells’’ and on ‘‘Fermi-Dirac distribution of excitons in coupled quantum wells’’
S. D. Baranovskii and P. Thomas
Phys. Rev. Lett. 69, 993 – Published 10 August 1992
Fachbereich Physik und Wissenschaft Zentrum für Materialwissenschaften, Philipps Universität Marburg, Renthof 5, W-3550 Marburg, Federal Republic of Germany