Molecular beam epitaxy of layered Dy-Ba-Cu-O compounds

Heteroepitaxial Dy-Ba-Cu-O films have been grown in situ on SrTiO3 substrates using an oxygen plasma beam and elemental source beams in a modified molecular beam epitaxy machine. By periodically shuttering the Dy and Ba beams during growth, flat surfaces of layered Dy-Ba-Cu-O compounds have been obt...

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Bibliographic Details
Published in:Applied physics letters 1988-10, Vol.53 (17), p.1660-1662
Main Authors: SCHLOM, D. G, ECKSTEIN, J. N, TURNER, F, HELLMAN, E. S, STREIFFER, S. K, HARRIS, J. S. JR, BEASLEY, M. R, BRAVMAN, J. C, GEBALLE, T. H, WEBB, C, VON DESSONNECK, K. E
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Physics
Surfaces and interfaces
thin films and whiskers (structure and nonelectronic properties)
Thin film structure and morphology
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Summary:Heteroepitaxial Dy-Ba-Cu-O films have been grown in situ on SrTiO3 substrates using an oxygen plasma beam and elemental source beams in a modified molecular beam epitaxy machine. By periodically shuttering the Dy and Ba beams during growth, flat surfaces of layered Dy-Ba-Cu-O compounds have been obtained. Periodic oscillations in the intensity of the in situ reflection high-energy electron diffraction pattern were observed during shuttered growths. Depending on growth conditions, the as-grown layers have ranged from insulating to superconducting with onset temperatures above 60 K.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.100443