Microstructure and properties of (Sr, Ca)CuO2/(Sr, Ca)RuO3 multilayers |
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Authors: | Hideaki Adachi Toshifumi Satoh Masahiro Sakai Koichi Mizuno and Kentaro Setsune |
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Affiliation: | (1) Central Research Laboratories, Matsushita Electric Industrial Co., Ltd., 3-4 Hikaridai, Seika-cho, 619-02 Kyoto, Japan |
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Abstract: | Epitaxial multilayer thin films of infinite-layer (Sr, Ca)CuO2 and perovskite (Sr, Ca)RuO3 have been prepared on (100) SrTiO3 substrates by multitarget rf magnetron sputtering. X-ray diffraction analyses revealed that the multilayer structure of (Sr, Ca)CuO3/(Sr, Ca)RuO3 was successfully fabricated with a minimum layer thickness of 20 Å. Transmission electron microscopy measurements of the multilayers indicated that there was no dislocation which normally exists in single-layer films with an infinite-layer structure. Resistivities of multilayer films at room temperature ranged from 1 to 10 m cm and showed semiconductor-like dependence against the temperature. |
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Keywords: | Multilayer thin film infinite layer (Sr Ca)CuO2 (Sr Ca)RuO3 TEM |
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