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Growth and Initial Characterization of Novel Hgte-Based II-VI Materials

Published online by Cambridge University Press:  21 February 2011

F.G. Moore ,
J.C. Abele  and
R.E. Kremer
F.G. Moore
Affiliation:
MC - 6832, Naval Research Laboratory, Washington, D.C. 20375
J.C. Abele
Affiliation:
Department of Physics, Lewis and Clark College, Portland, OR 97219
R.E. Kremer
Affiliation:
Crystal Specialties, Colorado Springs, CO. 80906
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Abstract

Hg1−xAxTe materials where A= {Be, Mg, Ba, Sr, Ca} have been synthesized by the vertical Bridgman technique. Hydrostatic density measurements showing segregation are presented and for HgMgTe an effective segregation coefficient is obtained. For HgMgTe a relationship between bandgap E and composition x, is developed based on FTIR measurements of cut-on wavelengths. The variation of energy gap with composition is found to be comparable to that of HgMnTe and twice as rapid as that of HgCdTe. Carrier concentration and mobility data from room temperature and 77K Hall measurements are presented for samples annealed in a saturated overpressure of Mercury.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 161: Symposium E – Properties of II-VI Semiconductors: Bulk Crystals, Epitaxial Films, Quantum Well Structures, and Dilute Magnetic Systems , 1989 , 239
Copyright
Copyright © Materials Research Society 1990

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References

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