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Communication Dans Un Congrès Année : 2013

Non-linear electro-elastic coupling in highly strained zinc-blende compounds: InGaP/GaP [111] quantum wells

Résumé

A symmetry-based thermodynamical model of third-order electro-elastic coupling is applied to zinc-blende semiconductors. Density functional theory is used to calculate the complete set of linear and non-linear coefficients. The entanglement of non-linear piezoelectricity, electrostriction and other non-linear phenomena, is studied in details at the same level of theory. Numerical results for InxGa1−xP/GaP [111] quantum wells show the predominance of the non-linear piezoelectricity contribution. However, for a coupled non-linear model, the electrostriction has also to be taken into account. Finally, the non-linear elasticity gives a significant correction on the strain calculation.
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Dates et versions

hal-00805344 , version 1 (28-03-2013)

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Laurent Pedesseau, Claudine Katan, Jean-Marc Jancu, Jacky Even. Non-linear electro-elastic coupling in highly strained zinc-blende compounds: InGaP/GaP [111] quantum wells. XV-th International Conference on High Pressure in Semiconductor Physics: HPSP-15, Jul 2012, Montpellier, France. pp.765-768, ⟨10.1002/pssb.201200498⟩. ⟨hal-00805344⟩
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