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Ca-doped Ba2Cu3O7–δ Bicrystal Junctions Fabricated on Asymmetric SrTiO3 Substrates

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dc.creator Malisa, Anayesu B.
dc.date 2016-09-21T13:55:26Z
dc.date 2016-09-21T13:55:26Z
dc.date 2005-07
dc.date.accessioned 2018-03-27T09:01:29Z
dc.date.available 2018-03-27T09:01:29Z
dc.identifier Malisa, A., 2005. Ca‐doped Ba2Cu3O7–δ bicrystal junctions fabricated on asymmetric SrTiO3 substrates. Annalen der Physik, 14(8), pp.533-538.
dc.identifier http://hdl.handle.net/20.500.11810/3995
dc.identifier 10.1002/andp.200510149
dc.identifier.uri http://hdl.handle.net/20.500.11810/3995
dc.description Full text can be accessed at http://onlinelibrary.wiley.com/doi/10.1002/andp.200510149/abstract
dc.description Bicrystal grain–boundary Josephson junctions of Ca–doped YBa2Cu3O7–δ that is Y0.7Ca0.3Ba2Cu3O7–δ were fabricated on three bicrystal SrTiO3 (001) substrates with asymmetric 30°, 40° and 45° orientations. An enhancement of the critical current density in these Ca–doped junctions was observed when compared with normal YBCO grain–boundary junctions with similar angular orientations. The observed increase in the critical current density is large for the junctions fabricated on the asymmetric 30° bicrystal substrate and small or negligible, for those on the asymmetric 45° bicrystal substrate. The critical current was modulated by a magnetic field applied in the plane of the junctions. However, the Fraunhofer pattern observed due to the applied magnetic field deviates from the ideal one.
dc.language en
dc.title Ca-doped Ba2Cu3O7–δ Bicrystal Junctions Fabricated on Asymmetric SrTiO3 Substrates
dc.type Journal Article


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