Visani, Cristina [et al.]Tornos Castillo, JavierNemes, Norbert MarcelRocci, MirkoLeón Yebra, CarlosSantamaría Sánchez-Barriga, Jacobo2024-01-312024-01-312011-08-23C. Visani, J. Tornos, N. M. Nemes, M. Rocci, C. Leon, J. Santamaria, S. G. E. te Velthuis, Yaohua Liu, A. Hoffmann, J. W. Freeland, M. Garcia-Hernandez, M. R. Fitzsimmons, B. J. Kirby, M. Varela, and S. J. Pennycook Phys. Rev. B 84, 060405(R) – (2011)2469-995010.1103/PhysRevB.84.060405https://hdl.handle.net/20.500.14352/97193Artículo firmado por 15 autoresWe have analyzed the interface structure and composition of La0.7Ca0.3MnO3/YBa2Cu3O7/La0.7Ca0.3MnO3 trilayers by combined polarized neutron reflectometry, aberration-corrected microscopy, and atomic column resolution electron-energy-loss spectroscopy and x-ray absorption with polarization analysis. We find the same stacking sequence at both top and bottom cuprate interfaces. X-ray magnetic circular dichroism experiments show that both cuprate interfaces are magnetic with a magnetic moment induced in Cu atoms as expected from symmetric Mn-O-Cu superexchange paths. These results supply a solid footing for the applicability of recent theories explaining the interplay between magnetism and superconductivity in this system in terms of the induced Cu spin polarization at both interfaces [J. Salafranca and S. Okamoto, Phys. Rev. Lett. 105, 256804 (2010)].engjournal article2469-9969https://doi.org/10.1103/PhysRevB.84.060405restricted access538.9SuperconductivityFísica del estado sólido2211 Física del Estado Sólido