Reflectivities and electronic band structure of Hg0.8Cd0.2Te

Details Reflectivities and electronic band structure of Hg0.8Cd0.2Te Reflectivities and electronic band structure of Hg0.8Cd0.2Te

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996spie.2894..132j&link_type=abstract

Proc. SPIE Vol. 2894, p. 132-137, Detectors, Focal Plane Arrays, and Applications, William G. Frederick; Junhong Su; Marc Wigdor

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The fundamental reflectivity spectrum of Hg(subscript 0.8)Cd(subscript 0.2)Te have been investigated. The feature of the spectra is the presence of E(subscript 1) and E(subscript 2) peaks with the fundamental absorption region. The lower energy peak can be split into a doublet (E(subscript 1) and E(subscript 1) + (Delta) (subscript 1)). A 3D saddle point is used to fit the E(subscript 1) and E(subscript 1) + (Delta) (subscript 1) critical point and some simulated calculation is done for E(subscript 2) at X point. The calculated results are compared with the measured results and prominent features of the dielectric spectra are identified with critical-point transition at the (Lambda) and X points in the Brillouin zone.

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