Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
61 (1992), S. 3178-3180
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We report on YBa2Cu3O7−δ thin-film preparation by a new laser deposition geometry, the so-called off-axis laser deposition. Combined with radiation-based substrate heating, this results in c-axis oriented, epitaxial YBa2Cu3O7−δ thin films with critical current densities above 106 A/cm2 at 77 K and zero field and an exceptionally good surface quality, with complete absence of the otherwise observed laser droplets. As proved by atomic force microscopy, the surface roughness is 〈80 A(ring) over an area of at least 10×10 μm2. Using this off-axis geometry it is possible to coat both sides of a substrate simultaneously, providing a one-step process in double-sided thin-film deposition. Both YBa2Cu3O7−δ films on the substrate show identical superconducting properties.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.107951
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