Method of manufacturing superconducting thin film material,...

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H01B 13/00 (2006.01) C30B 29/22 (2006.01) H01B 12/06 (2006.01) H01F 6/06 (2006.01) H01L 39/24 (2006.01)

Patent

CA 2641902

A process for producing a superconducting thin-film material, including the vapor phase step of forming superconducting layer (3) in accordance with a vapor phase method and the liquid phase step of forming superconducting layer (4) abutting on the superconducting layer (3) in accordance with a liquid phase method. Preferably, the process further includes the step of forming interlayer (2) between the superconducting layer (3) and metal substratum (1). It is preferred that the metal substratum (1) consist of a metal, and that the interlayer (2) consist of an oxide with any of rock, perovskite and pyrochlore crystal structures, and that both the superconducting layer (3) and the superconducting layer (4) have an RE123 composition. Accordingly, the value of critical current can be enhanced.

La présente invention concerne un procédé de production d'un matériau en pellicule mince superconducteur, comprenant une étape en phase vapeur consistant à réaliser une couche superconductrice (3) selon un procédé en phase vapeur et une étape en phase liquide consistant à réaliser une couche superconductrice (4) contigüe à la couche superconductrice (3) selon un procédé en phase liquide. Le procédé comprend de préférence en outre une étape consistant à former une intercouche (2) entre la couche superconductrice (3) et un substrat métallique (1). Le substrat métallique (1) est constitué de préférence d'un métal, et l'intercouche (2) est de préférence constituée d'un oxyde avec l'une quelconque de structures cristallines rocheuse, perovskite et pyrochlore, et les deux couches superconductrices (3) et (4) sont de préférence d'une composition RE123. La présente invention permet d'améliorer la valeur du courant critique.

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