Synthesis of Artificially Layered Bi-Sr-Ca-Cu Oxide Films and Their Thermal Stability
Abstract
Bi-O/Sr-Ca-Cu-O multilayered films have been synthesized using two target reactive magnetron sputtering. It is shown that the modulation wavelength \varLambda (c/2 for the crystals) can be simply controlled by varying the deposition time for a one layer unit of Sr-Ca-Cu-O while keeping that for Bi-O constant. The films thus obtained have smooth surfaces and have \varLambda’s ranging from 12 to 26 Å, i.e., almost equal to those of the crystalline or intergrowth phases observed in the Bi-Sr-Ca-Cu-O system. The thermal stability of these artificially layered films is also reported.
- Publication:
-
Japanese Journal of Applied Physics
- Pub Date:
- March 1989
- DOI:
- 10.1143/JJAP.28.L437
- Bibcode:
- 1989JaJAP..28L.437N
- Keywords:
-
- Bismuth Oxides;
- Microstructure;
- Mixed Oxides;
- Oxide Films;
- Superconducting Films;
- Thermal Stability;
- Calcium Oxides;
- Copper Oxides;
- Crystal Growth;
- Magnetron Sputtering;
- Strontium Compounds;
- Thin Films;
- Solid-State Physics