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Título: | Magnetic structure of epitaxial self-assembled La0.7Sr0.3MnO3 nanoislands |
Autor: | Zabaleta, Jone CSIC; Valencia, Sergio; Kronast, Florian; Jaafar, Miriam CSIC ORCID; Abellán, Patricia CSIC ORCID; Moreno, César CSIC ORCID; Gázquez, Jaume CSIC ORCID; Iglesias-Freire, Óscar CSIC ORCID; Sandiumenge, Felip CSIC ORCID; Puig Molina, Teresa CSIC ORCID ; Asenjo Barahona, Agustina CSIC ORCID ; Mestres, Narcís CSIC ORCID ; Obradors, Xavier CSIC ORCID | Fecha de publicación: | 2013 | Editor: | American Physical Society | Citación: | APS March Meeting (2013) | Resumen: | The mixed-valence manganite La0.7Sr0.3MnO3 (LSMO), in nanoscale configuration, is a strong candidate for magnetic logic and sensor applications because of its Curie temperature (360 K) and high degree of spin polarization. In this work we unravel the magnetic structure of self-assembled ferromagnetic LSMO epitaxial nanoislands smaller than 200 nm in lateral size and less than 40 nm in height, grown using a bottom-up solution-based methodology. Magnetic force microscopy shows that LSMO islands stabilize either single domain, multidomain, or vortex state configurations, depending on their lateral size and aspect ratio. The vortex state of islands with different morphology and two distinct crystallographic orientations is further explored using spatially-resolved x-ray magnetic circular dichroism in photoemission electron microscopy measurements. The vortex evolution of individual islands is tracked in-situ by applying in-plane magnetic field. The magnetic structure study is complemented with crystal structure, strain state, and chemical composition studies. | Versión del editor: | http://meetings.aps.org/link/BAPS.2013.MAR.J17.3 | URI: | http://hdl.handle.net/10261/180314 |
Aparece en las colecciones: | (ICMAB) Comunicaciones congresos (ICMM) Comunicaciones congresos |
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