Epitaxial YBa2Cu3O7−δ thin films on SrRuO3/Pt/MgO

Tiwari, P. ; Wu, X. D. ; Foltyn, S. R. ; Le, M. Q. ; Campbell, I. H. ; Dye, R. C. ; Muenchausen, R. E.

Woodbury, NY : American Institute of Physics (AIP)
Published 1994
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Epitaxial YBa2Cu3O7−δ (YBCO) thin films were deposited on (100) MgO using platinum and SrRuO3 (SRO) buffer layers by pulsed laser deposition. The films were (001) textured normal to substrate surface with a high degree of in-plane orientation with respect to the substrate's major axes. YBCO films showed superconducting transition temperature (Tco) at 91 K and critical current densities were found to be 2–3×106 A/cm2 at 77 K and zero field. An ion beam minimum channeling yield of 16% was obtained for YBCO films, indicating high crystallinity. The orientation relationship for this epitaxial multilayer structure was found to be (100) YBCO(parallel)(100) SRO(parallel)(100)Pt(parallel)(100) MgO. This result showed that high-quality superconducting thin films can be deposited on metal with an appropriate buffer layer.
Type of Medium:
Electronic Resource
URL: