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Hernández Martín, David ; Gallego Toledo, Fernando ; Tornos Castillo, Javier ; Rouco Gómez, Víctor ; Beltrán Finez, Juan Ignacio ; Munuera, C. ; Sánchez Manzano, David ; Cabero Piris, Mariona ; Cuéllar Jiménez, Fabián Andrés ; Arias Serna, Diego ; Sánchez Santolino, Gabriel ; Mompean, F. J. ; Gárcia Hernández, M. ; Rivera Calzada, Alberto Carlos ; Pennycook, S. J. ; Varela del Arco, María ; Muñoz, M. C. ; Sefrioui, Zouhair ; León Yebra, Carlos ; Santamaría Sánchez-Barriga, Jacobo | American Physical Society | 2020-12-30The persistence of ferroelectricity in ultrathin layers relies critically on screening or compensation of polarization charges which otherwise destabilize the ferroelectric state. At surfaces, charged defects play a crucial role in the screening[...]texto impreso
Peña, V. ; Sefrioui, Zouhair ; Arias Serna, Diego ; León Yebra, Carlos ; Santamaría Sánchez-Barriga, Jacobo ; Varela del Arco, María ; Pennycook, S. J. ; Martínez, J. L. | American Physical Society | 2004-06-08Here we examine the ferromagnetic/superconducting proximity effect in half-metallic ferromagnetic La_(0.7)Ca_(0.3)MnO_(3) and high-T_(c) superconducting YBa_(2)Cu_(3)O_(7) artificial structures. We have found experimental evidence for the coupli[...]texto impreso
Varela del Arco, María ; Arias Serna, Diego ; Sefrioui, Zouhair ; León Yebra, Carlos ; Ballesteros, C. ; Pennycook, S. J. ; Santamaría Sánchez-Barriga, Jacobo | American Physical Society | 2002-10-01We 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 1texto impreso
Bruno, Flavio Yair ; Grisolia, M. N. ; Visani, C. ; Valencia, S. ; Varela del Arco, María ; Aburdan, R. ; Tornos, J. ; Rivera Calzada, Alberto Carlos ; Ünal, A. A. ; Pennycook, S. J. ; Sefrioui, Zouhair ; León Yebra, Carlos ; Villegas, J. E. ; Santamaría Sánchez-Barriga, Jacobo ; Barthélémy, A. ; Bibes, M. | Nature Publishing Group | 2015-02-17At interfaces between complex oxides, electronic, orbital and magnetic reconstructions may produce states of matter absent from the materials involved, offering novel possibilities for electronic and spintronic devices. Here we show that magneti[...]texto impreso
Pennycook, T. J. ; Oxley, M. P. ; Garcia Barriocanal, Javier ; Bruno, F. Y. ; León Yebra, Carlos ; Santamaría Sánchez-Barriga, Jacobo ; Pantelides, S. T. ; Varela del Arco, María ; Pennycook, S. J. | E D P Sciences | 2011-06Colossal ionic conductivity was recently discovered in YSZ/SrTiO_(3) multilayers and was explained in terms of strain- and interface-enhanced disorder of the O sublattice. In the present paper we use a combination of scanning transmission electr[...]
