Analysis of Transport Properties of MOD YBCO Films With BaZrO₃as Artificial Vortex Pinning Centers

Vortex Pinning and Flux Flow Microwave Studies of Coated Conductors

“…On the other hand, k p is slightly above the average values in literature for both samples, so that perhaps the texturing pattern, with its grain boundaries, could play a role here. As far as the comparison between the two samples is concerned, they present similar values on both η and k p , suggesting that the BZO addition, despite the T c reduction, does not improve appreciably the pinning properties at high frequency of these particular samples, in stark contrast with what observed in other samples [36]. This can be compared with the observed slight increase of the critical current J c [10] in the BZO-added sample.…”

Challenging microwave resonant measurement techniques for conducting material characterization

“…The measured sample is a YBCO thin film (thickness t ∼ 150 nm) with second phases nanoinclusions, grown on a SrTiO 3 substrate [85,86]. The thickness of the SC film is three times larger than the lower YBCO film thickness assessed in [39] below which considerable differences appear between a simple perturbative method and a more complex and rig orous electromagnetic study of the resonator.…”

Axiotaxy in oxide heterostructures: Preferential orientation of BaCeO3 nanoparticles embedded in superconducting YBa2Cu3O7− thin films

“…Previous works demonstrated that incorporated secondary phases by ex situ (i.e. embedding preformed nanostructures within the superconducting matrix) [24,25,26] or in situ (i.e. generating controlled heterogeneities during the YBCO fabrication) [27,28,29] can act as incorporated vortex pinning centers which increase the critical currents and thus the superconducting performances [18,30,20,31,32,33].…”