RAMAN-SCATTERING FROM OPTICAL PHONONS IN INAS1-XSBX INAS STRAINED-LAYER SUPERLATTICES/

Authors
ARTUS L STRADLING RA LI YB WEBB SJ YUEN WT CHUNG SJ CUSCO R
Citation
L. Artus et al., RAMAN-SCATTERING FROM OPTICAL PHONONS IN INAS1-XSBX INAS STRAINED-LAYER SUPERLATTICES/, Physical review. B, Condensed matter, 54(23), 1996, pp. 16373-16376
Citations number
19
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
54
Issue
23
Year of publication
1996
Pages
16373 - 16376
Database
ISI
SICI code
0163-1829(1996)54:23<16373:RFOPII>2.0.ZU;2-#
Abstract
The optical phonon modes of InAs1-xSbx/InAs strained-layer superlattic es with x in the range between 0.14 and 0.39 have been studied by Rama n scattering. The observed frequencies of the InAs LO mode ag;ee;Yell with the strain-induced shifts calculated for the InAs layers assuming free-standing conditions. The high quality of the superlattices allow s us to observe the InAs-like mode of the alloy. Another peak, whose i ntensity is dependent on the excitation wavelength, is observed betwee n the InAs LO and TO energies and assigned to interface modes.