Growth of Bi/Sb Superlattice

Abstract
The present work describes the growth at room temperature of Bi, Sb and Bi-12 at.%Sb films on glass substrates and a Bi/Sb 40-layer superlattice film on a single-crystal Si (111) substrate. Thin-film X-ray diffractometer measurements strongly show the (003) orientation of these films. Four peaks are observed in small-angle X-ray diffraction measurements of the Bi/Sb superlattice film and indicate good periodicity. Direct transmission electron microscopy (TEM) observations also clearly show the superlattice structure.