MBE Growth of InGaAlAs Lattice-Matched to InP by Pulsed Molecular Beam Method

Abstract
High-quality InGaAlAs lattice-matched to InP was obtained by MBE with a pulsed molecular beam. Very narrow full width at half maximum (FWHM) of a photoluminescence spectrum at 4.2 K (4.5, 9.0, 10.3, 13.1, 16.2 meV) was obtained for In0.52(Ga1-x Al x )0.48As(x=0, 0.25, 0.5, 0.75, 1). The dependence of the energy band gap of In0.52(Ga1-x Al x )0.48As on Al composition, x, was found to be linear in the range of 0≦x≦1.