Modification of exchange interaction parameters by wire width in Cd{sub 0.95}Mn{sub 0.05}Te/Cd{sub 0.90}Mg{sub 0.10}Te quantum wires

Journal Article · Fri Jun 01 00:00:00 EDT 2001 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.1357143· OSTI ID:40203844

Chen, Z H; Debnath, M C; Shibata, K; Saitou, T; Sato, T; Oka, Y

Magneto-photoluminescence from mesa-shaped Cd{sub 0.95}Mn{sub 0.05}Te/Cd{sub 0.90}Mg{sub 0.10}Te quantum wires were studied. The Zeeman shift of the excitonic photoluminescence from the quantum wires in a magnetic field is significantly decreased, compared to that from quantum wells. This decrease results from the possible reduction of the exchange interaction of electrons and holes with Mn ions in low dimensional structures. In the excitonic photoluminescence of the quantum wires with the width of 50{endash}100 nm, the transient relaxation of the luminescence peak energy due to the excitonic magnetic polaron formation is remarkably less than that in the quantum well. This result shows the suppressed excitonic magnetic polaron effect in the narrower quantum wires. {copyright} 2001 American Institute of Physics.

• Sponsoring Organization: (US)
• OSTI ID: 40203844
• Journal Information: Journal of Applied Physics, Vol. 89, Issue 11; Other Information: DOI: 10.1063/1.1357143; Othernumber: JAPIAU000089000011006701000001; 295111MMM; PBD: 1 Jun 2001; ISSN 0021-8979
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRONS
EXCHANGE INTERACTIONS
LUMINESCENCE
MAGNETIC FIELDS
MODIFICATIONS
PHOTOLUMINESCENCE
PHYSICS
POLARONS
RELAXATION
TRANSIENTS