Cheetham, K. J. and Krier, A. and Patel, I. I. and Martin, F. L. and Tzeng, J-S and Wu, C-J and Lin, H-H (2011) Raman scattering in InAsxSbyP1-x-y alloys grown by gas source MBE. Journal of Physics D: Applied Physics, 44 (8). 085405. ISSN 0022-3727
Full text not available from this repository.Abstract
The Raman spectra of quaternary InAsxSbyP1-x-y epitaxial layers nominally lattice-matched to (1 0 0) n-type InAs substrates are reported. The phonon peaks are identified for alloys covering a wide composition range extending into the miscibility gap. Three-mode behaviour was obtained across part of the composition range. InP-like longitudinal optical (LO) and transverse optical (TO) phonons were observed over the entire compositional range, but InAs-like LO phonons were only observed at high arsenic concentrations and no InSb-like TO phonons were observed. Disorder-related phonon peaks were obtained for alloy compositions within the miscibility gap.