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| Título: | Effect of interface-induced exchange fields on cuprate-manganite spin switches |
Autor: | Liu, Yaohua; Visani, C.; Nemes, N. M. CSIC ORCID CVN; García-Hernández, Mar CSIC ORCID ; León, Carlos CSIC ORCID; Santamaría, Jacobo CSIC ORCID; Velthuis, S. G. E. te | Fecha de publicación: | 2012 | Editor: | American Physical Society | Citación: | Physical Review Letters 108(20): 207205 (2012) | Resumen: | We examine the anomalous inverse spin switch behavior in La 0.7Ca 0.3MnO 3(LCMO)/YBa 2Cu 3O 7-δ (YBCO)/LCMO trilayers by combined transport studies and polarized neutron reflectometry. Measuring magnetization profiles and magnetoresistance in an in-plane rotating magnetic field, we prove that, contrary to many accepted theoretical scenarios, the relative orientation between the two LCMO's magnetizations is not sufficient to determine the magnetoresistance. Rather the field dependence of magnetoresistance is explained by the interplay between the applied magnetic field and the (exponential tail of the) induced exchange field in YBCO, the latter originating from the electronic reconstruction at the LCMO/YBCO interfaces. © 2012 American Physical Society. | Descripción: | et al. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevLett.108.207205 | URI: | http://hdl.handle.net/10261/73815 | DOI: | 10.1103/PhysRevLett.108.207205 | Identificadores: | doi: 10.1103/PhysRevLett.108.207205 issn: 0031-9007 |
| Aparece en las colecciones: | (ICMM) Artículos |
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