Varela Del Arco, MaríaArias Serna, DiegoSefrioui, ZouhairLeón Yebra, CarlosBallesteros, C.Pennycook, S. J.Santamaría Sánchez-Barriga, Jacobo2023-06-202023-06-202002-10-011098-012110.1103/PhysRevB.66.134517https://hdl.handle.net/20.500.14352/59617© 2002 The American Physical Society. This work was supported by CICYT MAT2000-1468, Fundación Ramón Areces and CAM07N/0008/2001.We report the effects of epitaxial strain and deoxygenation on high quality [YBa_(2)Cu_(3)O_(7-x)(YBCO)_(N) /PrBa_(2)Cu_(3)O_(7)(PBCO)_(5)]_(1000 Å) superlattices, with 1 < N < 12 unit cells. High-spatialresolution electron energy loss spectroscopy shows that strained, fully oxygenated YBCO layers are underdoped. Irrespective of whether underdoping is induced by strain or deoxygenation, x-ray diffraction analysis shows that T_(c) correlates directly with separation of the CuO_(2) bilayers.engjournal articlehttp://dx.doi.org/10.1103/PhysRevB.66.134517http://journals.aps.org/open access537High-temperature superconductorCharge-transferTransition-temperatureGrain-boundariesThin-filmsSuperlatticesPressureDependenceLayersOrigin.ElectricidadElectrónica (Física)2202.03 Electricidad