Vortex system in coupled DyBa2Cu3O7-delta(Y0.45Pr0.55)Ba2Cu3O7-delta heterostructures
1996 (English)In: Czechoslovak Journal of Physics, ISSN 0011-4626, E-ISSN 1572-9486, Vol. 46, no SUPPL. 3, 1565-1566 p.Article in journal (Refereed) Published
Transport measurements have been used to determine the vortex phase diagram (H parallel to c) of coupled heterostructures made of superconducting ultra-thin DyBa2Cu3O7-delta layers separated by semiconducting (Y0.45Pr0.55)Ba2Cu3O7-delta layers. These structures have an intermediate anisotropy between those of YBa2Cu3O7-delta and Bi2Sr2CaCu2O8+d. The solid-to-liquid transition and the flux dynamics have been investigated as a function of the total sample thickness d. Analyses of the parameters describing the thermally activated dissipation in the solid and liquid phases reveal a field induced crossover characterized by two fields, H-on(T) and H*>H-on. We discuss the meaning of these features and their relationship with results in bulk high temperature superconductors.
Place, publisher, year, edition, pages
1996. Vol. 46, no SUPPL. 3, 1565-1566 p.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:kth:diva-49997DOI: 10.1007/BF02562897OAI: oai:DiVA.org:kth-49997DiVA: diva2:460876
QC 20111206. 21st International Conference on Low Temperature Physics (LT 21), PRAGUE, CZECH REPUBLIC, AUG 08-14, 19962011-12-012011-12-012011-12-06Bibliographically approved