Biomedical Engineering Reference
In-Depth Information
Fig. 5.2
∈
zz
)strain
components through the center of the quantum dot layers along the [001] direction. The hydrostatic
component is dominantly negative inside the QDs indicating strong compression of the InAs and it
is almost zero outside the QD regions. As the QDM height increases, the biaxial strain in the QDs
evolves from negative to zero with a small increase in positive contributions in the capping layer
The plots of hydrostatic (
∈
H
=
∈
xx
+
∈
yy
+
∈
zz
) and biaxial (
∈
B
=
∈
xx
+
∈
yy
−
2
