Villegas, J. E.Sefrioui, ZouhairVarela Del Arco, MaríaGonzález Herrera, Elvira MaríaSantamaría Sánchez-Barriga, JacoboVicent López, José Luis2023-06-202023-06-202004-041098-012110.1103/PhysRevB.69.134505https://hdl.handle.net/20.500.14352/52082©2004 The American Physical Society. We acknowledge financial support from Spanish CICYT through Grants Nos. MAT2002-4543 and MAT2000-1468, Grant No. CAM 07N/0008/2001, ESF-Vortex Program, and R. Areces Foundation. One of us (E.M.G.) wants to thank Ministerio de Ciencia y Tecnología for a Ramon y Cajal contract.We study angular dependent magnetoresistance in the vortex-liquid phase of epitaxial YBa2Cu3O7 thin films and YBa_2Cu_3O_7/PrBa_2Cu_3O_7 superlattices. Superlattices were grown with different PrBa_2Cu_3O_7 thickness in order to tune coupling between YBa_2Cu_3O_7 layers. While dissipation of single film and coupled superlattices is scaled with the anisotropic three-dimensional model in the whole angular range, decoupling through PrBa_2Cu_3O_7 spacer breaks down the scaling and yields strong reduction of the dissipation when the magnetic fields are applied up to ±20degrees around the interface direction. Bean-Livingston barriers at the interface are the mechanism which governs this behavior.engjournal articlehttp://dx.doi.org/10.1103/PhysRevB.69.134505https://journals.aps.orgopen access538.9537Surface barriersTransport-propertiesVortex phaseLiquid-stateBi_2Sr_2CaCu_2O_8YBa_2Cu_3O_7CrystalsAnisotropyFilmsElectricidadElectrónica (Física)Física de materialesFísica del estado sólido2202.03 Electricidad2211 Física del Estado Sólido