Magnetophotoluminescence of positively-charged excitons in GaAs quantum wells

Hayne, M and Vanhoucke, Tony and Henini, Mohamed and Moshchalkov, Victor V (2002) Magnetophotoluminescence of positively-charged excitons in GaAs quantum wells. Physica E: Low-dimensional Systems and Nanostructures, 12 (1-4). pp. 516-519. ISSN 1386-9477

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Abstract

We have studied the low-temperature photoluminescence of high-mobility two-dimensional hole gases in GaAs quantum wells in magnetic fields up to 50 T. We have observed both spin states of the neutral (X-0) and of the singlet state of the positively charged exciton (X-), allowing us to determine their g-factors and the binding energy of X-. We find that the g-factor of the X is larger than that of X-0 by a factor of 1.6. In very high fields. we expect the low-energy spin-state of X- to be bound only because of the Zeeman interaction. (C) 2002 Elsevier Science B.V. All rights reserved.

Item Type:
Journal Article
Journal or Publication Title:
Physica E: Low-dimensional Systems and Nanostructures
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
49843
Deposited By:
Deposited On:
20 Sep 2011 08:23
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 07:37