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Signatures of a two-dimensional ferromagnetic electron gas at the La_(0.7)Sr_(0.3)MnO_(3)/SrTiO_(3) interface arising from orbital reconstruction

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http://dx.doi.org/10.1002/adma.201402829

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2014

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WILEY-V C H VERLAG GMBH
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https://hdl.handle.net/20.500.14352/34700

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Nemes, N. M., CAlderón, M. J., Beltrán Fínez, J. I. et al. «Signatures of a Two‐Dimensional Ferromagnetic Electron Gas at the La 0.7 Sr 0.3 MnO 3 /SrTiO 3 Interface Arising From Orbital Reconstruction». Advanced Materials, vol. 26, n.o 44, noviembre de 2014, pp. 7516-20. DOI.org (Crossref), https://doi.org/10.1002/adma.201402829.

Abstract

The magnetoresistance of La0.7Sr0.3MnO3/SrTiO3La0.7Sr0.3MnO3/SrTiO3 superlattices with magnetic field rotating out-of-plane shows unexpected peaks for in-plane fields. Resistivity calculations with spin–orbit coupling reveal that orbital reconstruction at the manganite interface leads to a 2D ferromagnetic electron gas coupled antiparallel to the manganite “bulk”. These orbital and magnetic reconstructions are supported by X-ray linear dichroism and ab initio calculations.

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Electricidad, Electrónica (Física)

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2202.03 Electricidad

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