Some aspects of interactions between HTSC-films and substrates |
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| Affiliation: | 1. Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, 842 15 Bratislava, Slovakia;2. Institute of Inorganic Chemistry, Slovak Academy of Sciences, 842 36 Bratislava, Slovakia;3. Institute of Electrical Engineering, Slovak Academy of Sciences, 842 39 Bratislava, Slovakia;1. Faculty of Electrical Engineering, University of Belgrade, Bulevar Revolucije 73, 11120, Belgrade, Yugoslavia;2. Institute of Microwaves and Photonics, School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.;1. Institut für Technische Physik, Universität Erlangen-Nürnberg, Germany;2. Xerox PARC, Palo Alto, U.S.A.;1. Superconductivity Research Laboratory, ISTEC, 4-1 Mutsuno 2-chome, Atsuta-ku, Nagoya 456-8587, Japan;2. Advanced Materials and Devices Laboratory, Toshiba Corp., 1 Komukai Toshiba-cho, Saiwai-ku, Kawasaki 210-8582, Japan;3. The Furukawa Electric Co., Ltd., 500 Kiyotaki, Nikko 321-1493, Japan;1. Technical University, Str. C. Daicoviciu 15, Cluj-Napoca, 3400, Romania;2. ENEA, Centro Ricerche Frascati, Via E./ Fermi 27, 00044 Frascati, Rome, Italy |
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| Abstract: | Different aspects of the interaction between YBa2Cu2Oy(YBCO) films and (100) ZrO2〈Y〉 (YSZ) substrates have been investigated. It was determined using X-ray diffraction methods that the structural mismatch between the film and the substrate leads to a film deformation throughout its thickness. At the same time a strained layer appears in the substrate, whose thickness is proportional to the film thickness. The surface morphology changes of YBCO films which take place with variation of the growth temperaturetsin the vicinity of the optimum temperature lead to changes of the film grain structure probably connected with nucleation centers. Tl2Ba2CaCu2Oy(TBCCO) films on YSZ substrates were also synthesized. It was found that the dependence of the TBCCO film surface morphology changes with annealing temperature and the dependence of YBCO film surface morphology changes ontsare similar. |
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