Growth of high Tc superconducting thin films using molecular beam epitaxy techniques

C. Webb, S. L. Weng, J. N. Eckstein, N. Missert, K. Char, D. G. Schlom, E. S. Hellman, M. R. Beasley, A. Kapitulnik, J. S. Harris

Research output: Contribution to journalArticlepeer-review

Abstract

Thin films of the high-temperature superconductor DyBa2Cu 3O7-x have been grown on SrTiO3 substrates using molecular beam epitaxy techniques. Reflection high-energy electron diffraction patterns observed during deposition indicate incomplete oxidation of copper and growth of oriented metallic copper microcrystals in a matrix of amorphous barium and dysprosium oxides. After post-growth anneal the films exhibited sharp superconducting transitions with zero resistance observed as high as 89 K and critical current densities of 4.8×105 A/cm2 at 4.2 K and 3.9×104 A/cm2 at 77 K.

Original languageEnglish (US)
Pages (from-to)1191-1193
Number of pages3
JournalApplied Physics Letters
Volume51
Issue number15
DOIs
StatePublished - Dec 1 1987
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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