Method of producing biaxially textured buffer layers and...

Details Method of producing biaxially textured buffer layers and... Method of producing biaxially textured buffer layers and...

H - Electricity

01

B

H01B 12/00 (2006.01) H01F 6/00 (2006.01) H01L 39/00 (2006.01)

Patent

CA 2528949

A superconductor article (10) includes a substrate (12) and a first buffer film (14) disposed on the substrate (12). The first buffer film (14) has a uniaxial crystal texture characterized (i) texture in a first crystallographic direction that extends out-of-plane of the first buffer film (14) with no significant texture in a second direction that extends in-plane of the first buffer film (14), or (ii) texture in a first crystallographic direction that extends in-plane of the first buffer film (14) with no significant texture in a second direction that extends out-of-plane of the first buffer film (14). A second buffer film (16) is disposed on the first buffer film, the second buffer film having a biaxial crystal texture. A superconductor layer (18) can be disposed on the second buffer film (16). Ion-beam assisted deposition (IBAD) can be used to deposit the second buffer film (16).

L'invention concerne un article superconducteur comprenant un substrat et un premier film d'amortissement placé sur le substrat. Le premier film d'amortissement possède une texture cristalline uniaxiale caractérisée en ce qu'elle possède : (i), une texture dans un premier sens cristallographique qui s'étend hors du plan du premier film d'amortissement sans texture significative dans un second sens qui s'étend dans le plan du premier film d'amortissement, ou (ii) une texture dans un premier sens cristallographique qui s'étend dans le plan du premier film d'amortissement sans texture significative dans le second sens qui s'étend hors du plan du premier film d'amortissement. Un second film d'amortissement est placé sur le premier, ce second film possède une texture cristalline biaxiale. Une couche superconductrice peut être placée sur le second film d'amortissement. Un dépôt assisté par faisceau ionique (IBAD) peut être utilisé afin de déposer le second film d'amortissement.

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