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3D Properties in (RE)BCO Tapes measured in Fields up to 35 T

Smith, AP; Raine, MJ; Surrey, E; Awaji, S; Okada, T; Hampshire, DP

3D Properties in (RE)BCO Tapes measured in Fields up to 35 T Thumbnail


AP Smith

E Surrey

S Awaji

T Okada

DP Hampshire


We have measured the temperature and angular dependence of the upper critical field (BC 2 ) for three state of the art (RE)BCO HTS tapes using variable-temperature ac susceptibility measurements in applied fields up to 35 T. The three tapes measured were a Fujikura tape without artificial pinning centers and Superpower tapes with and without artificial pinning centers. We have obtained fits to our BC 2 (T,θ) data using both the anisotropic Ginzburg–Landau (G–L) and Klemm’s models for layered superconductors. Our calculations suggest that these tapes are three-dimensional (3-D) at all temperatures in zero field but become 2-D in magnetic fields above a crossover field of 457/γ T, where γ = √mc/mab is the G–L anisotropy parameter. The values of γ were measured and show that the 3-D–2-D crossover fields in these tapes are at least 130 T.


Smith, A., Raine, M., Surrey, E., Awaji, S., Okada, T., & Hampshire, D. (2019). 3D Properties in (RE)BCO Tapes measured in Fields up to 35 T. IEEE Transactions on Applied Superconductivity, 29(5), Article 6601005.

Journal Article Type Article
Acceptance Date Jan 8, 2019
Online Publication Date Mar 11, 2019
Publication Date Aug 31, 2019
Deposit Date Jan 18, 2019
Publicly Available Date Mar 28, 2019
Journal IEEE Transactions on Applied Superconductivity
Print ISSN 1051-8223
Electronic ISSN 1558-2515
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 29
Issue 5
Article Number 6601005


Accepted Journal Article (509 Kb)

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