Microstructures of Y123 films on SrTiO sub 3 , LaGaO sub 3 and LaAlO sub 3

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Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) have been used to study the microstructural features of YBa{sub 2}Cu{sub 3}O{sub 7} (hereafter referred to as Y123) films grown on various single crystal substrates by electron beam deposition. The films are all of high quality with the best observed J{sub c} value being 3 {times} 10{sup 7} A{center dot}cm{sup -2} at 7 K. Cross-sectional views in TEM have shown that the morphology of the film depends on its thickness. Thinner films (2500 {angstrom}) have a single layer of Y123 oriented with its c-axis perpendicular to the substrate while thicker films ... continued below

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Roy, T.; Raistrick, I.D. & Mitchell, T.E. January 1, 1989.

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Transmission electron microscopy (TEM) and scanning electron microscopy (SEM) have been used to study the microstructural features of YBa{sub 2}Cu{sub 3}O{sub 7} (hereafter referred to as Y123) films grown on various single crystal substrates by electron beam deposition. The films are all of high quality with the best observed J{sub c} value being 3 {times} 10{sup 7} A{center dot}cm{sup -2} at 7 K. Cross-sectional views in TEM have shown that the morphology of the film depends on its thickness. Thinner films (2500 {angstrom}) have a single layer of Y123 oriented with its c-axis perpendicular to the substrate while thicker films (8000 {angstrom}) have this same c-axis perpendicular layer closest to the interface with a c-axis parallel layer above it. The interface between the film and the substrate is well defined in all cases with no amorphous region at the interface. Chemical analysis shows some inter-diffusion between the film and the substrate. 3 refs., 6 figs.

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Pages: (5 p)

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NTIS, PC A02/MF A01 - OSTI; GPO Dep.

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  • Materials Research Society fall meeting, Boston, MA (USA), 27 Nov - 2 Dec 1989

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  • Other: DE90003367
  • Report No.: LA-UR-89-4011
  • Report No.: CONF-891119--10
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 5491222
  • Archival Resource Key: ark:/67531/metadc1092285

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Office of Scientific & Technical Information Technical Reports

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Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1989

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  • Feb. 10, 2018, 10:06 p.m.

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  • May 30, 2018, 6:07 p.m.

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Roy, T.; Raistrick, I.D. & Mitchell, T.E. Microstructures of Y123 films on SrTiO sub 3 , LaGaO sub 3 and LaAlO sub 3, article, January 1, 1989; New Mexico. (digital.library.unt.edu/ark:/67531/metadc1092285/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.