Pressure Dependence of the Light Emission in Zinc-Blende InGaAs/GaAs and InGaN/GaN Quantum Wells

• Authors: S. Łepkowski , I. Gorczyca
• Languages of publication: EN

Abstracts

EN

We present theoretical study of the pressure coefficient of the light emission (dE_{E}/dP) in compressively strained zinc-blende InGaAs/GaAs and InGaN/GaN quantum wells, grown in a (001) direction. We investigate the contributions to dE_{E}/dP arising from (i) third-order (nonlinear) elasticity, (ii) nonlinear elasticity, originating from pressure dependence of elastic constants, and (iii) nonlinear dependence of elastic constants on composition in InGaAs and InGaN alloys. The obtained results indicate that the use of nonlinear elasticity is essential for determination of dE_{E}/dP in the strained InGaAs/GaAs and InGaN/GaN quantum wells, while the inclusion of the nonlinear dependence of elastic constants on composition of InGaAs and InGaN alloys does not improve agreement between the theoretical end experimental values of dE_{E}/dP in the considered structures.

Keywords

EN

62.20.D-; 62.50.-p; 81.40.Jj; 78.67.De

Discipline

• 62.20.D-: Elasticity(for materials treatment effects on elastic properties, see 81.40.Jj)
• 78.67.De: Quantum wells
• 81.40.Jj: Elasticity and anelasticity, stress-strain relations
• 62.50.-p: High-pressure effects in solids and liquids(for high pressure apparatus and techniques, see 07.35.+k; for high-pressure behavior of rocks and minerals, see 91.60.Gf; for pressure treatments, see 81.40.Vw in materials science; for effects of pressure on superconducting transition temperature, see 74.62.Fj)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2009
• Volume: 116
• Issue: 5
• Pages: 857-858

Dates

published

2009-11

Contributors

author

S. Łepkowski

• Unipress - Institute of High Pressure Physics, Polish Academy of Sciences, Sokołowska 29, 01-142 Warszawa, Poland

author

I. Gorczyca

• Unipress - Institute of High Pressure Physics, Polish Academy of Sciences, Sokołowska 29, 01-142 Warszawa, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.116.857