Electronic properties of Hg/sub 1-//sub x//sub -//sub y/Cd/sub x/Zn/sub y/Te

Journal Article · Tue Feb 28 23:00:00 EST 1989 · J. Vac. Sci. Technol., A; (United States)

DOI:https://doi.org/10.1116/1.576096· OSTI ID:6555288

Ekpenuma, S N; Myles, C W

The electronic structure of Zn-containing Hg/sub 1-//sub x/Cd/sub x/Te is investigated and the effects of Zn on the band gap and effective masses are estimated. In these studies, ZnTe is treated as an additional alloy constituent and the resulting quaternary alloy Hg/sub 1-//sub x//sub -//sub y/Cd/sub x/Zn/sub y/Te is modeled using both the virtual-crystal approximation and the coherent potential approximation. Numerical results are obtained by utilizing tight-binding band structures of the constituent compounds. Results are presented for the variation of the band gap and electron effective mass with Zn composition y for fixed Cd composition x, and for the dependence of the electron and hole effective masses on Zn composition for two different fixed band gaps in the infrared regime. The results show that Zn-induced alloy disorder effects can be important for determining both the band gap and the effective masses, but that for constant band-gap material the effective masses are almost independent of y.

• Research Organization: Department of Physics and Engineering Physics, Texas Tech University, Lubbock, Texas 79409-1051
• OSTI ID: 6555288
• Journal Information: J. Vac. Sci. Technol., A; (United States), Journal Name: J. Vac. Sci. Technol., A; (United States) Vol. 7:2; ISSN JVTAD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
ANGULAR MOMENTUM
BAND THEORY
CADMIUM COMPOUNDS
CADMIUM TELLURIDES
CHALCOGENIDES
ELECTRONIC STRUCTURE
FUNCTIONS
HAMILTONIAN FUNCTION
MERCURY COMPOUNDS
MERCURY TELLURIDES
PARTICLE PROPERTIES
SPIN
TELLURIDES
TELLURIUM COMPOUNDS
ZINC ADDITIONS
ZINC ALLOYS
ZINC COMPOUNDS
ZINC TELLURIDES