Abstract
Abstract The energy spectrum of a two-dimensional electron gas (2DEG) interacting with a valence-band hole is studied in the high magnetic field limit as a function of the filling factor v and the separation d between the electron and hole layers. For d smaller than the magnetic length Λ, the hole binds one or more electrons to form neutral (X) or charged (X−) excitons. The low-lying states can be understood in terms of Laughlin-like correlations among the constituent charged fermions (electrons and X−). For d comparable to Λ, the electron-hole interaction is not strong enough to bind a full electron, and fractionally charged excitons hQE n (bound states of a hole and one or more Laughlin quasi-electrons, QEs) are formed. The effect of these excitonic complexes on the photoluminescence spectrum is studied numerically for a wide range of values of v and d.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
