title: Atomic Control of the SrTiO3 Crystal Surface.
abstract: The atomically smooth SrTiO(3) (100) with steps one unit cell in height was obtained by treating the crystal surface with a pH-controlled NH(4)F-HF solution. The homoepitaxy of SrTiO(3) film on the crystal surface proceeds in a perfect layer-by-layer mode as verified by reflection high-energy electron diffraction and atomic force microscopy. Ion scattering spectroscopy revealed that the TiO(2) atomic plane terminated the as-treated clean surface and that the terminating atomic layer could be tuned to the SrO atomic plane by homooepitaxial growth. This technology provides a well-defined substrate surface for atomically regulated epitaxial growth of such perovskite oxide films as YBa(2)Cu(3)O(7-delta).
authors.forename: M
authors.initials: M
authors.lastname: Kawasaki
authors.forename: K
authors.initials: K
authors.lastname: Takahashi
authors.forename: T
authors.initials: T
authors.lastname: Maeda
authors.forename: R
authors.initials: R
authors.lastname: Tsuchiya
authors.forename: M
authors.initials: M
authors.lastname: Shinohara
authors.forename: O
authors.initials: O
authors.lastname: Ishiyama
authors.forename: T
authors.initials: T
authors.lastname: Yonezawa
authors.forename: M
authors.initials: M
authors.lastname: Yoshimoto
authors.forename: H
authors.initials: H
authors.lastname: Koinuma