Localization of carriers of Y-doped CaCuO2films prepared by an organometallic-chemical-vapour-deposition method

✍ Scribed by Kenkichiro Kobayashi; Yozo Ishihara; Shigenori Matsushima; Genji Okada

• Publisher: Springer
• Year: 1993
• Tongue: English
• Weight: 385 KB
• Volume: 28
• Category: Article
• ISSN: 0022-2461
• DOI: 10.1007/bf00356417

✦ Synopsis

Y-doped CaCuO 2 films have been formed on SrTiO3 (1 0 0) substrates in the range 730-790 ~ The lattice constants of c = 0.3180 ,-~ 0.3183 nm were estimated from the X-ray diffraction (XRD) of c-axis-oriented Y-doped CaCuO2 films. The values of the c-axis were shorter than those of the undoped CaCuO= film. Although the resistivity of a Y-doped CaCuO2 film is significantly lower in comparison with that of an undoped CaCuO 2 film, no superconductivity was found in these Y-doped CaCuO= films at temperatures higher than 12K.