MAGNETIC-FIELD-INDUCED RESONANT COUPLING BETWEEN 1S-EXCITON AND 3D-EXCITON STATES

Authors
ELOUAZZANI A COQUILLAT D LASCARAY JP RUBO YG KAVOKIN AV
Citation
A. Elouazzani et al., MAGNETIC-FIELD-INDUCED RESONANT COUPLING BETWEEN 1S-EXCITON AND 3D-EXCITON STATES, Physical review. B, Condensed matter, 56(20), 1997, pp. 13113-13117
Citations number
9
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
56
Issue
20
Year of publication
1997
Pages
13113 - 13117
Database
ISI
SICI code
0163-1829(1997)56:20<13113:MRCB1A>2.0.ZU;2-E
Abstract
The giant Zeeman splitting of exciton states in semimagnetic semicondu ctors Cd1-xMnxTe and Cd1-xCoxTe has been exploited to study the coupli ng of originally ground (is) and excited (3d) exciton states. At a cer tain magnetic field the upper Zeeman pattern of the is state passes th rough the lower pattern of the 3s state, giving to the latter half of its oscillator strength. Such an anticrossing behavior has been observ ed in circularly polarized magnetoreflection spectra, which allowed a determination of exchange coupling constants in the studied materials.