Remanent Magnetic Flux Distribution in Superconducting-Ferromagnetic Layered Heterostructures
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Stacks of superconducting tape, made of second generation coated conductors present an interesting alternative to bulk superconductors. The layered geometry allows incorporation of other functional, namely ferromagnetic materials. The ferromagnetic material changes the field configuration within the superconductor and can be used to shape or divert the flux density from its interior. This can be used to optimize the remanent flux density after magnetization. FEM simulations are employed to test the performance of a variety of superconductor/ferromagnet structures and explain the role of the ferromagnetic material in the composite structure. Cases where trapped field is much higher and lower than remanent magnetisation of the ferromagnetic material are considered, showing that performance can be enhanced or maintained by using ferromagnetic material whilst reducing the usage of costly superconducting tape.
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1557-1947
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European Commission Horizon 2020 (H2020) Societal Challenges (723119)