Spin-triplet negatively charged excitons in GaAs quantum wells

A. J. Shields, M. Pepper, M. Y. Simmons, and D. A. Ritchie
Phys. Rev. B 52, 7841 – Published 15 September 1995
PDFExport Citation

Abstract

We observe magnetic-field-induced transitions in the interband optical spectra of GaAs quantum wells with a small excess electron density. Their strengthening with excess electron density, in addition to their light polarization dependence, demonstrate that these correspond to (excited) spin-triplet states of the negatively charged exciton. The second-electron binding energy of both singlet and triplet X strengthens with field.

  • Received 6 April 1995

DOI:https://doi.org/10.1103/PhysRevB.52.7841

©1995 American Physical Society

Authors & Affiliations

A. J. Shields and M. Pepper

  • Toshiba Cambridge Research Centre, 260, Science Park, Milton Road, Cambridge CB4 4WE, United Kingdom

M. Y. Simmons and D. A. Ritchie

  • Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom

References (Subscription Required)

Click to Expand
Issue

Vol. 52, Iss. 11 — 15 September 1995

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×