TEMPORAL DYNAMICS OF EXCITON–TRION SYSTEM

Author:

KOCHERESHKO V. P.1,PLATONOV A. V.1,MIKHAILOV G. V.1,PULS J.2,HENNEBERGER F.2,YAKOVLEV D. R.3,FASCHINGER W.4

Affiliation:

1. A. F. Ioffe Physico-Technical Institute RAS, 194021, St. Petersburg, Russia

2. Humboldt Universität zu Berlin, D-10115, Berlin, Germany

3. Fachbereich Physik, Universität Dortmund, 44221 Dortmund, Germany

4. Physikalisches Institut der Universität Würzburg, D-97074, Würzburg, Germany

Abstract

Time-resolved and time-integrated circularly-polarized photoluminescence of excitons and trions have been studied in external magnetic fields up to 10 T. ZnSe-based quantum well structures of n-type with carrier densities varied from 5×109 to 1011 cm -2 were used in this study. Absence of the chemical equilibrium in the exciton–trion system has been demonstrated at low temperatures (<10 K ). The recovery of the equilibrium has been found at elevated temperatures (<15 K ).

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Computer Science Applications,Condensed Matter Physics,General Materials Science,Bioengineering,Biotechnology

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