Single source MOCVD system for deposition of superconducting films onto moved tapes
JOURNAL DE PHYSIQUE IV(2001)
摘要
A new single source MOCVD-system was developed, which can be used to coat continuously textured Nickel tapes. To test the YBCO deposition single crystals and MAD buffered substrates were continuously transported with 4 m/h through the deposition zone. The critical current density of the superconducting layers at 77 K is higher than 4 MA/cm(2) on single crystalline LaAlO3 and higher than 2 MA/cm(2) on IBAD buffered tapes. Two routes for the buffer layer deposition on Ni are chosen: a) NiO is epitaxially grown onto textured Ni by thermal oxidation, b) In reducing atmosphere textured buffer layers were deposited onto nickel.
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关键词
Thin Film Growth
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