Compositional dependence of infrared phonon parameters for Hg1-xCdxTe |
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| Authors: | D. Rajavel S. Perkowitz |
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| Affiliation: | (1) School of Materials Engineering, Georgia Institute of Technology, 30332 Atlanta, GA;(2) Department of Physics Emory University, 30322 Atlanta, GA |
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| Abstract: | The full set of Lorentzian oscillator parameters describing the two-mode phonon behavior in Hg1-x-jCdxTe is reported. A new analysis of reflectivity spectra combined with existing results gives the most accurate available values
for the CdTe-like and HgTe-like transverse optical frequency, strength and (for the first time) damping constant vs CdTe fractionx at room, liquid nitrogen and liquid helium temperatures. Polynomial fits vsx for each parameter are provided for use in characterizing Hg1-xCdxTe and the HgTe-CdTe superlattice. |
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| Keywords: | Hg1-xCdxTe phonon infrared |
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