TRANSIENT PHOTO-REFLECTANCE OF CDMNTE MBE LAYERS - OPTICAL-PATH MODULATION

Authors
FARAH W SCALBERT D NAWROCKI M GAJ JA JANIK E KARCZEWSKI G WOJTOWICZ T
Citation
W. Farah et al., TRANSIENT PHOTO-REFLECTANCE OF CDMNTE MBE LAYERS - OPTICAL-PATH MODULATION, Journal of crystal growth, 185, 1998, pp. 980-983
Citations number
4
Categorie Soggetti
Crystallography
Journal title
Journal of crystal growth → ACNP
ISSN journal
00220248
Volume
185
Year of publication
1998
Pages
980 - 983
Database
ISI
SICI code
0022-0248(1998)185:<980:TPOCML>2.0.ZU;2-Y
Abstract
In photo-reflectance of Cd1-xMnxTe layers, a new modulation mechanism of thermo-magnetic origin, optical path modulation, gives additional l ines. These lines are used for volume probing of magnetic relaxation. The comparison with the free-exciton line? used as a surface probe, gi ves an insight into spin relaxation and heat diffusion phenomena. The heat diffusion coefficient in our sample (x = 0.16) is estimated to be about 1 cm(2)/s and the spin-lattice relaxation time in superfluid He about 330 ns. (C) 1998 Elsevier Science B.V. All rights reserved.