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Synthesis of the Carrier Doped Infinite-Layer Films by rf Thermal Plasma Evaporation

  • A. Kume (a1), H. Yakabe (a1), Y. Shiohara (a1) and N. Koshizuka (a1)

Abstract

We tried to deposit (Sr1−xCax)0.9CuO2-δ films, so-called “the infinite-layer” structure, of (100) SrTiO3 substrates by using radio-frequency thermal plasma evaporation. The crysta structure of these films was confirmed by X-ray diffraction to consist of the (00l) oriented infinite-layer structure. However, the temperature dependence of resistivity showed no superconductivity in spite of varying ratios of Sr/Ca. A description is given of attempts to induce superconductivity in the infinite-layer films by the introduction of holes, namely by O2 plasma annealing and Na-doping.

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Synthesis of the Carrier Doped Infinite-Layer Films by rf Thermal Plasma Evaporation

  • A. Kume (a1), H. Yakabe (a1), Y. Shiohara (a1) and N. Koshizuka (a1)

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