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Article overview
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Nanostructured superconductor/ferromagnet bilayers | | M. Lange
; M. J. Van Bael
; L. Van Look
; S. Raedts
; V. V. Moshchalkov
; Y. Bruynseraede
; | | Date: |
17 Dec 2001 | | Journal: | New Trends in Superconductivity, J. F. Annett and S. Kruchinin (eds.), NATO Science Series II: Mathematics, Physics and Chemistry, vol. 67, pp. 365-373, Kluwer Academic Publishers, Dordrecht (2002) | | Subject: | Superconductivity | cond-mat.supr-con | | Abstract: | The pinning properties of type-II superconductors can be efficiently controlled by using laterally nanostructured ferromagnet / superconductor bilayers. This will be illustrated by studying the flux pinning in thin superconducting Pb films which are deposited on top of two types of magnetic nanostructures with out-of-plane magnetisation: (i) an array of dots, and (ii) an array of antidots, both made from a Co/Pt multilayer. The magnetisation curves of the Pb film are extremely asymmetric with respect to the polarity of the magnetic field when the magnetic moments in the Co/Pt multilayer were aligned prior to measurement. This asymmetry proves that magnetic contributions dominate the pinning potential that the magnetic nanostructures induce in the superconductor. | | Source: | arXiv, cond-mat/0201302 | | Services: | Forum | Review | PDF | Favorites | |
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