Abstract
A new technique for producing thin films of the high-temperature perovskite superconductors, LnBa2Cu3O7-x, where Ln represents a rare-earth element, using spin-on metalorganic precursors is described. Pyrolysis of the spin-coated films, consisting of mixed metal (2-ethyl hexanoates), leads to black films up to several microns thick whose degree of orientation is a function of the processing temperature and duration. Representative films of YBa2Cu3O7-x on MgO begin to exhibit orientation with the c axis perpendicular to the film plane at heat treatments above 900°C. The superconducting behavior of a highly oriented film produced at 990°C is characterized by Tc(onset)=89 K, Tc(R=0)=77 K, and Jc=103 A cm -2 at 65 K.
Original language | English (US) |
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Pages (from-to) | 160-162 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 52 |
Issue number | 2 |
DOIs | |
State | Published - 1988 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)