When bandgap engineering, the bandgap is plotted against this quantity for many binary, ternary, and quaternary semiconductor
When bandgap engineering, the bandgap is plotted against this quantity for many binary, ternary, and quaternary semiconductors. For a ternary alloy, say, Ga1-xInxAs, this quantity is equal to x times it for 3 InAs plus 1 minus x times it for GaAs according to good ol' Vegard's law. Whether a deposited layer is in the compressional or tensile regime depends on its value for this quantity in comparison to its (*) substrate. Generally, a small mismatch in this quantity is desired for epitaxial layers, to reduce the mechanical 6 stress of a structure. For 10 points, name this "constant" that is the same for all dimensions of a cubic unitcell.
When bandgap engineering, the bandgap is plotted against this quantity for many binary, ternary, and quaternary semiconductors.
lattice constant [or: lattice parameter, cell parameter; prompt on: a]