Abstract
Heteroepitaxial Dy-Ba-Cu-O films have been grown in situ on SrTiO 3 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.
Original language | English |
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Pages (from-to) | 1660-1662 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 53 |
Issue number | 17 |
DOIs | |
State | Published - 1988 |
Externally published | Yes |