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Remanent Magnetic Flux Distribution in Superconducting-Ferromagnetic Layered Heterostructures

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Patel, A 
Climente-Alarcon, V 
Glowacki, BA 

Abstract

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.

Description

Keywords

Trapped field magnet, HTS tape, Stack of tapes, HTS modeling

Journal Title

Journal of Superconductivity and Novel Magnetism

Conference Name

Journal ISSN

1557-1939
1557-1947

Volume Title

32

Publisher

Springer Science and Business Media LLC
Sponsorship
Engineering and Physical Sciences Research Council (EP/P000738/1)
European Commission Horizon 2020 (H2020) Societal Challenges (723119)
Horizon 2020 grant 723199 (ASuMED project).