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Flux pinning properties of superconductors with an array of blind holes | | S. Raedts
; A. V. Silhanek
; M. J. Van Bael
; V. V. Moshchalkov
; | | Date: |
22 Mar 2004 | | Journal: | Physical Review B 70, 024509 (2004) | | Subject: | Superconductivity | cond-mat.supr-con | | Abstract: | We performed ac-susceptibility measurements to explore the vortex dynamics and the flux pinning properties of superconducting Pb films with an array of micro-holes (antidots) and non-fully perforated holes (blind holes). A lower ac-shielding together with a smaller extension of the linear regime for the lattice of blind holes indicates that these centers provide a weaker pinning potential than antidots. Moreover, we found that the maximum number of flux quanta trapped by a pinning site, i.e. the saturation number ns, is lower for the blind hole array. | | Source: | arXiv, cond-mat/0403550 | | Services: | Forum | Review | PDF | Favorites | |
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