SrCuO[sub 2]/(Sr,Ca)CuO[sub 2] superlattice growth by pulsed-laser deposition

Journal Article · Sun Nov 27 23:00:00 EST 1994 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.112519· OSTI ID:6821412

Norton, D P; Budai, J D; Lowndes, D H; Chakoumakos, B C ^[1]

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1. Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6056 (United States)

Superlattice structures, consisting of SrCuO[sub 2] and (Sr,Ca)CuO[sub 2] layers in the tetragonal, infinite layer'' crystal structure, have been grown by pulsed-laser deposition. Superlattice chemical modulation is observed for structures with SrCuO[sub 2] and (Sr,Ca)CuO[sub 2] layers as thin as a single unit cell ([similar to]3.4 A). X-ray diffraction intensity oscillations, due to the finite thickness of the film, indicate that these films are extremely flat with a thickness variation of only [similar to]20 A over a length scale of several thousand angstroms. These results show that unit-cell control of (Sr,Ca)CuO[sub 2] growth is possible in an oxygen pressure regime in which [ital in] [ital situ] surface analysis is not possible.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6821412
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 65:22; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360207 -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
665100 -- Nuclear Techniques in Condensed Matter Physics -- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABLATION
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DIFFRACTION
ELECTROMAGNETIC RADIATION
EPITAXY
FILMS
LASER RADIATION
MORPHOLOGY
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
SCATTERING
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERLATTICES
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION