CVD Synthesis of HTSC Films Using Volatile Coordination Compounds

Abstract

Thin HTSC films of YBa 2 Cu 3 O 7-x with high c-axis orientation have been grown using PE MOCVD technique and adducts of copper, yttrium and barium acetylacetonate with α,α'-dipyridyl as precursors. In-situ films were deposited in N 2 and O 2 gas reactant mixture at reduced substrate temperatures. HTSC films prepared on SrTiO 3 , ZrO 2 (Y) and MgO substrates have rather high electric characteristics (e.g. j c 10 4 - 10 5 A/cm 2 ). The problem of β-diketonate adducts using as precursors for plasma enhanced chemical vapor deposition of superconductive films was discussed.