ISSN:
1432-0630
Keywords:
73.60.K
;
81.15.E
;
81.40.G
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract Y1Ba2Cu3O7−δ thin films were deposited by KrF laser ablation while replacing conventional contact heating by cw CO2 laser irradiation of the substrate front surface. The HTSC films obtained on (100)ZrO2 showed T c(R=0)=90 K, ΔT(90–10%)=0.5 K, j c=2.5 × 106 A/cm2, a sharp transition in the ac susceptibility X(T), and pure c-axis orientation. Micrographs of thin films (〈 0.5 μm) showed a smooth morphology while thick films (〉1 μm) contained many crystallites sticking in the bulk material. Furthermore, in situ patterning was achieved during deposition by local laser heating of a selected substrate surface area. The resulting planar films contained amorphous, semiconducting parts only 1 mm or less apart from crystalline material showing the above HTSC quality.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00324205
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