Observation of Free and Bound Excitons Associated with the 2-Dimensional Electron-Gas in Modulation-Doped Heterostructures

Authors

D. C. ReynoldsFollow
David C. Look, Wright State University - Main CampusFollow
B. Jogai
C. E. Stutz

Document Type

Article

Publication Date

4-1-1994

Abstract

Overlapping bulk and two-dimensional excitons have been observed in modulation-doped heterostructures. Their differing behavior in a magnetic field allows them to be studied separately. Both free and bound excitons, associated with the two-dimensional electron gas, have been observed in the photoluminescence spectra of these structures. These excitons show a reduced binding energy due to screening and are found in a region of the structure where band-gap renormalization occurs due to many-body interactions. The two-dimensional excitons are identified from measurements conducted in applied magnetic fields.

Comments

The original publication is available at http://prb.aps.org/abstract/PRB/v49/i16/p11456_1

Repository Citation

Reynolds, D. C., Look, D. C., Jogai, B., & Stutz, C. E. (1994). Observation of Free and Bound Excitons Associated with the 2-Dimensional Electron-Gas in Modulation-Doped Heterostructures. Physical Review B, 49 (16), 11456-11458.
https://corescholar.libraries.wright.edu/physics/194

DOI

10.1103/PhysRevB.49.11456