Published October 15, 1990
| Version v1
Journal article
Application of a near coincidence site lattice theory to the orientations of YBa2Cu3O7-x grains on (001) MgO substrates
Creators
- 1. Bellcore, Red Bank, NJ (USA)
- 2. Physics Department, Rutgers University, Piscataway, NJ (USA)
Description
Various orientations of YBa2Cu3O7-x grains in polycrystalline films prepared on (001)MgO substrates by in situ laser deposition were determined using electron diffraction. Eight different types of in-plane orientations have been observed. These orientations agree well with the prediction of a simplified theory of near coincidence site lattice between YBa2Cu3O7-x and MgO. The YBa2Cu3O7-x grains were found to have a high probability of forming low angle or low Σ boundaries among themselves. These grain boundaries are of low energy and should exhibit a high connectivity of Cu-O-Cu chains. Therefore, YBa2Cu3O7-x thin films on MgO can attain a Tc of ∼90 K and a Jc of ∼106 A/cm2 at 77 K
Additional details
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 57
- Journal Issue
- 16
- Series
- Appl. Phys. Lett.
- Journal Page Range
- 1690-1692
- ISSN
- 0003-6951
- CODEN
- APPLA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22022375
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- BARIUM OXIDES; COPPER OXIDES; CURRENT DENSITY; ELECTRON DIFFRACTION; EXPERIMENTAL DATA; GRAIN BOUNDARIES; GRAIN ORIENTATION; HIGH-TC SUPERCONDUCTORS; POLYCRYSTALS; SUPERCONDUCTING FILMS; SUPERCONDUCTIVITY; TRANSITION TEMPERATURE; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; COPPER COMPOUNDS; CRYSTAL STRUCTURE; CRYSTALS; DATA; DIFFRACTION; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; FILMS; INFORMATION; MICROSTRUCTURE; NUMERICAL DATA; ORIENTATION; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SCATTERING; SUPERCONDUCTORS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS