Published April 1997
| Version v1
Journal article
An improvement of surface smoothness and lattice match of CeO2 buffer layers on R-sapphire processed by MOCVD
Creators
- 1. Moskovskij Gosudarstvennyj Univ., Moscow (Russian Federation). Khimicheskij Fakul'tet
- 2. Department of Physics, Moscow State University, 119899, Moscow (Russian Federation)
- 3. Nat. Center for HREM, Delft TU, Rotterdamsweg 137, 2628 AL, Delft (Netherlands)
- 4. The Florida State University, Department of Chemistry, Tallahassee, FL 32306-3006 (United States)
Description
Epitaxial thin films of CeO2 and Ce1-xRxO2-y (R=Y, Nd; x=0-0.32) on R-sapphire were prepared by band flash evaporation MOCVD. It was demonstrated that the smoothness of the films can be improved by a decrease of deposition rate and by post deposition annealing at 1000 C. The lattice match of buffer layers with R-Al2O3 and YBa2Cu3O7-δ was improved by doping of ceria with yttrium and neodymium correspondingly. A bilayer structure Ce0.7Nd0.3O2-y/Ce0.68Y0.32O2-y/R-Al2O3 is proposed as potential substrate material for YBa2Cu3O7-δ deposition. (orig.)
Additional details
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 251
- Journal Issue
- 1-2
- Journal Page Range
- p. 318-321.
- ISSN
- 0925-8388
- CODEN
- JALCEU
Conference
- Title
- Growth mechanisms - interfaces - multilayers as part of the spring meeting of the European Materials Research Society (E-MRS).
- Acronym
- Symposium F on high temperature superconductor thin films
- Dates
- 4-7 Jun 1996.
- Place
- Strasbourg (France).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Switzerland
- INIS RN
- 28072117
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ANNEALING; CERIUM OXIDES; CHEMICAL VAPOR DEPOSITION; LATTICE PARAMETERS; LAYERS; NEODYMIUM OXIDES; SAPPHIRE; STOICHIOMETRY; SUBSTRATES; SUPERCONDUCTING COMPOSITES; SURFACE PROPERTIES; TRANSMISSION ELECTRON MICROSCOPY; YTTRIUM OXIDES
- Descriptors DEC
- CERIUM COMPOUNDS; CHALCOGENIDES; CHEMICAL COATING; COMPOSITE MATERIALS; CORUNDUM; DEPOSITION; ELECTRON MICROSCOPY; HEAT TREATMENTS; MATERIALS; MICROSCOPY; MINERALS; NEODYMIUM COMPOUNDS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SURFACE COATING; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS