Band gap and lattice constant of GaxIn1-xAsySb1-y

Kyurhee Shim; Herschel Rabitz; Partha Dutta

doi:10.1063/1.1323520

Band gap and lattice constant of Ga_xIn_1-xAs_ySb_1-y

Kyurhee Shim, Herschel Rabitz, Partha Dutta

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Abstract

The energy band gap and lattice constant of the quaternary alloy Ga_xIn_1-xAs_ySb_1-y were determined over the entire composition space (x, y) using a correlated function expansion (CFE) technique to interpolate from observed ternary compound data. Considerable anomalous band gap behavior (i.e., deep bowing) was found, which produced band gap minima as a function of composition. This deep bowing effect was experimentally observed in a quasibinary alloy (GaSb)_1-z(InAs)_z at low values of z. In addition, the CFE lattice matching relations of the alloy grown on GaSb and InAs were obtained as a function of composition, and the corresponding band gaps were estimated. The CFE estimates were in good agreement with existing experimental data.

Original language	English (US)
Pages (from-to)	7157-7161
Number of pages	5
Journal	Journal of Applied Physics
Volume	88
Issue number	12
DOIs	https://doi.org/10.1063/1.1323520
State	Published - Dec 15 2000

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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abstract = "The energy band gap and lattice constant of the quaternary alloy GaxIn1-xAsySb1-y were determined over the entire composition space (x, y) using a correlated function expansion (CFE) technique to interpolate from observed ternary compound data. Considerable anomalous band gap behavior (i.e., deep bowing) was found, which produced band gap minima as a function of composition. This deep bowing effect was experimentally observed in a quasibinary alloy (GaSb)1-z(InAs)z at low values of z. In addition, the CFE lattice matching relations of the alloy grown on GaSb and InAs were obtained as a function of composition, and the corresponding band gaps were estimated. The CFE estimates were in good agreement with existing experimental data.",

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AU - Shim, Kyurhee

AU - Rabitz, Herschel

AU - Dutta, Partha

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N2 - The energy band gap and lattice constant of the quaternary alloy GaxIn1-xAsySb1-y were determined over the entire composition space (x, y) using a correlated function expansion (CFE) technique to interpolate from observed ternary compound data. Considerable anomalous band gap behavior (i.e., deep bowing) was found, which produced band gap minima as a function of composition. This deep bowing effect was experimentally observed in a quasibinary alloy (GaSb)1-z(InAs)z at low values of z. In addition, the CFE lattice matching relations of the alloy grown on GaSb and InAs were obtained as a function of composition, and the corresponding band gaps were estimated. The CFE estimates were in good agreement with existing experimental data.

AB - The energy band gap and lattice constant of the quaternary alloy GaxIn1-xAsySb1-y were determined over the entire composition space (x, y) using a correlated function expansion (CFE) technique to interpolate from observed ternary compound data. Considerable anomalous band gap behavior (i.e., deep bowing) was found, which produced band gap minima as a function of composition. This deep bowing effect was experimentally observed in a quasibinary alloy (GaSb)1-z(InAs)z at low values of z. In addition, the CFE lattice matching relations of the alloy grown on GaSb and InAs were obtained as a function of composition, and the corresponding band gaps were estimated. The CFE estimates were in good agreement with existing experimental data.

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Band gap and lattice constant of Ga_xIn_1-xAs_ySb_1-y

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