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Título: | In operando adjustable orbital polarization in LaNiO3 thin films |
Autor: | Vasili, Hari Babu; Pesquera, David CSIC ORCID; Valvidares, Manuel; Gargiani, Pierluigi; Pellegrin, Eric; Bondino, Federica; Magnano, Elena; Barla, Alessandro; Fontcuberta, Josep CSIC ORCID | Palabras clave: | Atomic orbital Electronically polarized systems Epitaxial strain Piezoelectrics Strain engineering Perovskite Thin films Transition-metal oxides X-ray absorption spectroscopy X-ray diffraction Strain engineering |
Fecha de publicación: | 7-abr-2020 | Editor: | American Physical Society | Citación: | Physical Review Materials 4(4): 044404 (2020) | Resumen: | The different occupancy of electronic orbitals, the so-called orbital polarization, is a key parameter determining electric and magnetic properties of materials. Here we report on the demonstration of in operando voltage-controlled tuning of the orbital occupation in LaNiO3 epitaxial thin films grown on piezoelectric substrates. The different static contributions to the orbital occupation are disentangled, namely the epitaxial strain and the surface symmetry breaking, and the superimposed electric-field controlled orbital polarization are determined by x-ray linear dichroism at the Ni L2,3 edges. The voltage-controlled orbital polarization allows changing the orbital polarization by about an additional 50%. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevMaterials.4.044404 | URI: | http://hdl.handle.net/10261/213055 | E-ISSN: | 2475-9953 |
Aparece en las colecciones: | (ICMAB) Artículos |
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Vasili_PhysRevMat_2020_editorial.pdf | Artículo principal | 990,39 kB | Adobe PDF | Visualizar/Abrir |
Vasili_PhysRevMat_2020_suppl_editorial.pdf | Información complementaria | 2,32 MB | Adobe PDF | Visualizar/Abrir |
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