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Superconducting and non-superconducting oxide multilayers

Hegde, MS and Satyalakshmi, KM and Manoharan, Sundar S and Kumar, Dhananjay (1995) Superconducting and non-superconducting oxide multilayers. In: of the Indo-US Workshop on Nucleation and Growth in Solidsof the, 14-16 March 1994, Bangalore, India, pp. 239-245.

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An overview of perovskite-related metallic oxides and their thin films is presented with an emphasis on the epitaxial growth of $LaNiO_3$ thin films on a variety of substrates. Using these films as metallic barrier layers, $YBa_2Cu_3O _{7-\delta}/LaNiO_3/YBa_2Cu_3O_{7-\delta}/SrTiO_$3 trilayer superconductor-normal metal (metallic oxide)-superconductor junctions have been fabricated. The results indicate that the coherence length of electrons in the normal metal $LaNiO_3$ region is of the order of 125 \AA. Besides, the growth of a-axis-oriented $LaBa_2Cu_{2.8}Ni_{0.2}O_{7+\delta}$ metallic thin films is reported which can be used as a promising template to grow a-axis-oriented overlayers required preferably in the fabrication of multilayer devices

Item Type: Conference Paper
Publisher: Elsevier Science B. V.
Additional Information: Copyright of this article belongs to Elsevier Science B. V.
Keywords: Multilayers;Oxide superconductors;Oxides;Lanthanum compounds;Thin films;Epitaxial growth;Substrates;Yttrium compounds;Strontium compounds;Semiconductor device manufacture;Electrons;Josephson junction devices
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 03 Jul 2008
Last Modified: 19 Sep 2010 04:37
URI: http://eprints.iisc.ac.in/id/eprint/10956

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