Published January 7, 2007
| Version v1
Journal article
Interface and defect structures in YBa2Cu3O7-δ and Nb : SrTiO3 heterojunction
- 1. Department of Chemical Engineering and Materials Science, University of California Davis, Davis, CA 95616 (United States)
- 2. Center for Superconductivity Research, Department of Physics, University of Maryland, College Park, MD 20742 (United States)
Description
YBa2Cu3O7-δ thin films grown on a Nb-doped SrTiO3 substrate by a pulsed laser deposition method have been fully characterized by scanning transmission electron microscopy Z-contrast imaging and electron energy loss spectroscopy techniques. The Nb distribution was found to be uniform and unchanged across the interface, ensuring a high quality p-n junction heterointerface. We first observed the coexistence of 124 and 125 YBCO defect structure phases, appearing as planar defects in a YBCO thin film. Dispersive Y2O3 nanoparticles have also been observed in the thin film. The interaction of these defect structures and Y2O3 nanoparticles is thought to be beneficial for pinning flux through the entire film thickness
Additional details
Identifiers
- DOI
- 10.1088/0022-3727/40/1/013;
- PII
- S0022-3727(07)31736-1;
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 40
- Journal Issue
- 1
- Journal Page Range
- p. 187-191
- ISSN
- 0022-3727
- CODEN
- JPAPBE
Conference
- Title
- Bio-dielectrics: theories, mechanisms and applications
- Acronym
- 2006 conference of the Institute of Physics Dielectrics Group
- Dates
- 10-12 Apr 2006
- Place
- Leicester (United Kingdom)
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38083913
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BARIUM OXIDES; COPPER OXIDES; CRYSTAL DEFECTS; DOPED MATERIALS; ENERGY BEAM DEPOSITION; ENERGY-LOSS SPECTROSCOPY; HETEROJUNCTIONS; HIGH-TC SUPERCONDUCTORS; LASER RADIATION; NANOSTRUCTURES; NIOBIUM; P-N JUNCTIONS; PARTICLES; PULSED IRRADIATION; STRONTIUM TITANATES; SUBSTRATES; THIN FILMS; TRANSMISSION ELECTRON MICROSCOPY; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL STRUCTURE; DEPOSITION; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; ELECTRON SPECTROSCOPY; ELEMENTS; FILMS; IRRADIATION; MATERIALS; METALS; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; REFRACTORY METALS; SEMICONDUCTOR JUNCTIONS; SPECTROSCOPY; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; SURFACE COATING; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; TYPE-II SUPERCONDUCTORS; YTTRIUM COMPOUNDS