Microstructure and superconductivity of Bi-Sr-Ca-Cu-O/Bi-Sr-Cu-O multilayer thin films

Kentaro Setsune; Akihiro Odagawa; Toshifumi Satoh; Hideaki Adachi; Kiyotaka Wasa

doi:10.1117/12.179145

29 June 1994 Microstructure and superconductivity of Bi-Sr-Ca-Cu-O/Bi-Sr-Cu-O multilayer thin films

Kentaro Setsune, Akihiro Odagawa, Toshifumi Satoh, Hideaki Adachi, Kiyotaka Wasa

Proceedings Volume 2157, Superconducting Superlattices and Multilayers; (1994) https://doi.org/10.1117/12.179145
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

Epitaxially grown multi-layers of Bi₂Sr₂CaCu₂O_y (Bi-2212) and Bi₂Sr₂CuO_x (Bi-2201) have been investigated referring to those microstructure and transport properties. Thin films have been prepared by a RF magnetron sputtering technique and laminated as the superconducting and non-superconducting layers. The samples have a variety of film thickness of each layer. The surface morphology, crystallization, diffusion and layered structures of these multi-layers were evaluated by TEM, AES, SIMS, STM-AFM and X-ray diffraction measurements. BSCO films exhibit normal conducting transport property even at 4.2 K. The superconducting properties such as change of Tc, a broadening of the transition and anisotropy in those properties under magnetic field were discussed. Those results suggested that the structural and electronic condition in N-layer seriously affect the superconducting interlayer coupling between superconducting layers through non- superconducting layers.

Citation Download Citation

Kentaro Setsune, Akihiro Odagawa, Toshifumi Satoh, Hideaki Adachi, and Kiyotaka Wasa "Microstructure and superconductivity of Bi-Sr-Ca-Cu-O/Bi-Sr-Cu-O multilayer thin films", Proc. SPIE 2157, Superconducting Superlattices and Multilayers, (29 June 1994); https://doi.org/10.1117/12.179145

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