Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Growth of untwinned Bi[sub 2]Sr[sub 2]Ca[sub n[minus]1]Cu[sub n]O[sub 2n+4+[delta]] thin films on Nd:YAlO[sub 3] substrates

Conference · · Journal of Superconductivity; (United States)
OSTI ID:7072445
Thin film growth of Bi[sub 2]Sr[sub 2]Ca[sub n[minus]1]Cu[sub n]O[sub 2n+4+[delta]] by molecular beam epitaxy is performed on Nd:YAlO[sub 3] (001) substrates. It was revealed that the orthorhombicity of the Nd:YalO[sub 3] substrate is quite effective to the growth of untwinned Bi[sub 2]Sr[sub 2]Ca[sub n[minus]1]Cu[sub n]O[sub 2n+4+[delta]] thin films. In all phases with n = 1 [approximately] 3, the incommensurate structural modulation lies parallel to the Nd:YAlO[sub 3] [100] direction, and this relation holds even in the case of superlattices. The origin of the epitaxial relation is discussed from the viewpoint of the lattice misfit. The orthorhombicity of the substrate competes with the step edges on a vicinally polished substrate for determining the in-plane growth direction. The rotation of the modulation direction was observed when the off angles are varied. 6 refs., 2 figs., 1 tab.
OSTI ID:
7072445
Report Number(s):
CONF-930710--
Conference Information:
Journal Name: Journal of Superconductivity; (United States) Journal Volume: 7:1
Country of Publication:
United States
Language:
English