TY - JOUR
T1 - GAAS-ALGAS superlattice band structure under hydrostatic pressure
T2 - An analysis based on the envelope function approximation
AU - Leburton, J. P.
AU - Kahen, K.
PY - 1985
Y1 - 1985
N2 - We propose new interface connection rules to determine the electronic properties of superlattices. Although similar to the so-called two-band model, these new rules are more general. Our approach is used to study the electronic structure of superlattices under high hydrostatic pressure. In our model, the influence of the pressure is taken into account by considering the modification of the energy gap and layer width of each material separately. It is demonstrated that the low value observed in the experimental determination of the pressure coefficient θSL of the GaAs layers is a consequence of the increasing rigidity of the energy band for energies away from the edges. Moreover the apparent homogeneity of θSL (GaAs) is the result of two opposing effects-the variation of the band rigidity and the narrowing of the layer thickness-which compensate each other.
AB - We propose new interface connection rules to determine the electronic properties of superlattices. Although similar to the so-called two-band model, these new rules are more general. Our approach is used to study the electronic structure of superlattices under high hydrostatic pressure. In our model, the influence of the pressure is taken into account by considering the modification of the energy gap and layer width of each material separately. It is demonstrated that the low value observed in the experimental determination of the pressure coefficient θSL of the GaAs layers is a consequence of the increasing rigidity of the energy band for energies away from the edges. Moreover the apparent homogeneity of θSL (GaAs) is the result of two opposing effects-the variation of the band rigidity and the narrowing of the layer thickness-which compensate each other.
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U2 - 10.1016/0749-6036(85)90028-X
DO - 10.1016/0749-6036(85)90028-X
M3 - Article
AN - SCOPUS:0022307747
SN - 0749-6036
VL - 1
SP - 49
EP - 53
JO - Superlattices and Microstructures
JF - Superlattices and Microstructures
IS - 1
ER -