Published August 21, 1989
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Raman scattering determination of strain in CdTe/ZnTe superlattices
Abstract
The strain configuration in CdTe/ZnTe strained-layer superlattices has been measured by Raman scattering near resonance. The ZnTe-like longitudinal optical phonon energy in the superlattice is significantly shifted from the bulk value to lower energies and the shift increases with increasing superlattice CdTe fraction. The observed shifts agree with calculations of strain shifts based on a free-standing strain distribution.
Additional Information
© 1989 American Institute of Physics. Received 17 April 1989; accepted 12 June 1989. The authors would like to thank D.J. Lockwood, J. Tsang, D.Z. Ting, H. Chu, and Y.-C. Chang for helpful discussions, and W. J. Boudville for assistance with computer graphics. This work was supported by the Defense Advanced Research Projects Agency and monitored by the Office of Naval Research under contract No. N00014-86-K-0841. One of us (M.K.J.) would like to acknowledge financial support from the Natural Sciences and Engineering Research Council of Canada.Files
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