Formation of textured YBCO films by laser ablation

Conference · Sat Oct 31 23:00:00 EST 1992

OSTI ID:6448521

Jankowski, A F; Olsen, B L

Yttrium-Barium-Cooper-Oxide (YBCO) thin films are prepared using laser ablation. The <100> orientation of the 0.2--0.3 [mu]m thin film is controlled using both substrate temperature and deposited buffer layers for epitaxial growth. Highly textured films are prepared with a c-axis preferred orientation using substrates of SrTiO[sub 3] (100) and MgO (100) at a temperature of 780[degrees]C whereas a,b-axis films result if a 100nm buffer of Praseodymium-Barium-Copper-Oxide is first deposited at 700 C. The use of a 15nm buffer layer of SrTiO[sub 3] on MgO (100) produces films with superconducting transitions equivalent to those YBCO films deposited directly on SrTiO[sub 3] (100) substrates.

• Research Organization: Lawrence Livermore National Lab., CA (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6448521
• Report Number(s): UCRL-JC-111025; CONF-921101--118; ON: DE93013131
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
&amp; Refractories-- Preparation &amp; Fabrication
ABLATION
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
DEPOSITION
FILMS
HEATING
HIGH-TC SUPERCONDUCTORS
LASER-RADIATION HEATING
OXIDES
OXYGEN COMPOUNDS
PLASMA HEATING
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
TEXTURE
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES