Process for producing superconducting thin-film material,...

H - Electricity – 01 – B

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H01B 13/00 (2006.01) H01B 12/06 (2006.01) H01F 6/06 (2006.01)

Patent

CA 2642015

A process for producing a superconducting thin-film material, including the steps of forming interlayer (2); forming superconducting layer (3) abutting on the interlayer (2); and forming superconducting layer (4) abutting on the superconducting layer (3) in accordance with a vapor phase method. The interlayer (2) is retained in a reduced-steam atmosphere or reduced-carbon- dioxide atmosphere during the period between the interlayer (2) forming step and the superconducting layer (3) forming step. The superconducting layer (3) is retained in a reduced-steam atmosphere or reduced-carbon-dioxide atmosphere during the period between the superconducting layer (3) forming step and the superconducting layer (4) forming step. 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 les étapes consistant à former une intercouche (2) ; à former une couche superconductrice (3) contigüe à l'intercouche (2) ; et à former une couche superconductrice (4) contigüe à la couche superconductrice (3) selon un procédé en phase vapeur. L'intercouche (2) est retenue dans une atmosphère réduite en vapeur ou dans une atmosphère réduite en dioxyde de carbone pendant la période entre l'étape de formation de l'intercouche (2) et l'étape de formation de la couche superconductrice (3). La couche superconductrice (3) est retenue dans une atmosphère réduite en vapeur ou dans une atmosphère réduite en dioxyde de carbone pendant la période entre l'étape de formation de la couche superconductrice (3) et l'étape de formation de la couche superconductrice (4). La présente invention permet d'améliorer la valeur du courant critique.

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