MAGNETIC-FIELD DEPENDENT EXCITON TRANSFER TIMES IN SEMIMAGNETIC DOUBLE-QUANTUM-WELL STRUCTURES

Authors
HIEKE K HEIMBRODT W
Citation
K. Hieke et W. Heimbrodt, MAGNETIC-FIELD DEPENDENT EXCITON TRANSFER TIMES IN SEMIMAGNETIC DOUBLE-QUANTUM-WELL STRUCTURES, Solid state communications, 93(4), 1995, pp. 257-260
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
Journal title
Solid state communications → ACNP
ISSN journal
00381098
Volume
93
Issue
4
Year of publication
1995
Pages
257 - 260
Database
ISI
SICI code
0038-1098(1995)93:4<257:MDETTI>2.0.ZU;2-F
Abstract
Tunnelling times are determined for the exciton transfer from the narr ow to the wide well of CdTe/(Cd,Mn)Te asymmetric double quantum well s tructures with semimagnetic barrier and nonmagnetic wells by means of time resolved photoluminescence. A strong dependence of the tunnelling time on an external magnetic field up to 10 Tesla is found, which is attributed to the decrease of the barrier height. The tunnelling times vary between 900 ps and 35 ps. The important role of the excitonic in teraction is pointed out.