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Título:
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Reversible electric-field control of magnetization at oxide interfaces
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Autores:
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Nemes, Norbert Marcel ;
Sánchez Santolino, G. ;
Varela del Arco, María ;
Sefrioui, Zouhair ;
León Yebra, Carlos ;
Santamaría Sánchez-Barriga, Jacobo
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Tipo de documento:
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texto impreso
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Editorial:
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Nature Publishers Group, 2014-06-23
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Dimensiones:
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application/pdf
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Nota general:
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cc_by
info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Electricidad
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Materia = Ciencias: Física: Electrónica
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Tipo = Artículo
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Resumen:
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Electric-field control of magnetism has remained a major challenge which would greatly impact data storage technology. Although progress in this direction has been recently achieved, reversible magnetization switching by an electric field requires the assistance of a bias magnetic field. Here we take advantage of the novel electronic phenomena emerging at interfaces between correlated oxides and demonstrate reversible, voltage-driven magnetization switching without magnetic field. Sandwiching a non-superconducting cuprate between two manganese oxide layers, we find a novel form of magnetoelectric coupling arising from the orbital reconstruction at the interface between interfacial Mn spins and localized states in the CuO2 planes. This results in a ferromagnetic coupling between the manganite layers that can be controlled by a voltage. Consequently, magnetic tunnel junctions can be electrically toggled between two magnetization states, and the corresponding spin-dependent resistance states, in the absence of a magnetic field.
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En línea:
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https://eprints.ucm.es/id/eprint/29496/1/Art.%20120.pdf
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