Pressure effect on YBa2Cu307 thin film growth in off-axis radio frequency magnetron sputtering

S. C. Wu, W. C. Tsai, C. K. Huang, H. T. Hsu, C. J. Huang, Tseung-Yuen Tseng

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9 Scopus citations

Abstract

Yba2Cu307_x (123) thin films were fabricated on (100) MgO substrates by off-axis single target radio frequency (rf) magnetron sputtering. Our study focused on the effect of chamber pressure on the composition, microstructure, and superconductive properties on transition behavior and Tcof the grown film studied. An empirical formula was derived to explain the dependence of the deposition rate of various components on the pressure. Next, we compared the transport mechanism of the sputtered particles between the off-axis rf and the on-axis direct current sputtering and determined the processing conditions that result in superconducting films of better quality. According to our findings, growth at higher pressures (>100 mTorr) produces more homogeneous and higher Tcsuperconducting films.

Original languageEnglish
Pages (from-to)2412-2419
Number of pages8
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume13
Issue number5
DOIs
StatePublished - 1 Jan 1995

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