A metal-organic chemical vapor deposition approach to double-sided Tl 2 Ba 2 Ca 1 Cu 2 O 8 superconducting films on LaAlO 3 (100) substrates
2002; Royal Society of Chemistry; Volume: 12; Issue: 12 Linguagem: Inglês
10.1039/b206039f
ISSN1364-5501
AutoresGraziella Malandrino, Anna M. Borzì, Ignazio L. Fragalà, A. Andreone, A. Cassinese, G. Pica,
Tópico(s)Iron-based superconductors research
ResumoDouble-sided Tl2Ba2CaCu2O8 (Tl-2212) films for device applications have been fabricated through thallium vapor diffusion into BaCaCuOF matrices deposited by a novel metal-organic chemical vapor deposition (MOCVD) process onto 10 × 10 mm2 LaAlO3 (100) substrates. The present approach uses a multimetal molten single source in a monocomponent hot-wall MOCVD reactor whose geometry allows simultaneous and uniform film growth on both sides of the substrate. Both sides are epitaxially coated by homogeneous and monophasic Tl-2212 films, which, even more importantly, have comparable superconducting and transport properties.
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