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Título: | 3D magnetic configuration of ferrimagnetic multilayers with competing interactions visualized by soft X-ray vector tomography |
Autor: | Hermosa, Javier; Hierro-Rodríguez, Aurelio CSIC ORCID; Sorrentino, Andrea; Martín, José Ignacio CSIC ORCID; Álvarez-Prado, L. M. CSIC ORCID; Rehbein, Stefan; Pereiro, Eva; Quirós, Carlos CSIC ORCID; Vélez, María CSIC ORCID; Ferrer, Salvador | Fecha de publicación: | 2022 | Editor: | Springer Nature Nature Publishing Group |
Citación: | Communications Physics 5: 26 (2022) | Resumen: | Full control of magnetic properties in exchange coupled systems requires a good understanding of 3D magnetic configuration with lateral and in-depth resolution. Here we show results from a soft X-ray tomographic reconstruction which allow determining, solely from the experimental data, a detailed description of the vector magnetic configuration of a ferrimagnetic Gd12Co88/Nd17Co83/Gd24Co76 trilayer with engineered competing anisotropy, exchange and magnetostatic interactions at different depths. The trilayer displays chevron patterns with a distorted closure structure. Near the top Gd24Co76 layer, local exchange springs with out-of-plane magnetization reversal, quasi-domains with ripple-like patterns and magnetic vortices and antivortices across the thickness are observed. The detailed analysis of the magnetic tomogram shows that the effective strength of the exchange spring at the NdCo/GdCo interface can be finely tuned by GdxCo1-x composition and anisotropy (determined by sample fabrication) and in-plane stripe orientation (adjustable), demonstrating the suitability of 3D magnetic visualization techniques in magnetic engineering research. | Versión del editor: | https://doi.org/10.1038/s42005-021-00800-3 | URI: | http://hdl.handle.net/10261/279570 | DOI: | 10.1038/s42005-021-00800-3 | E-ISSN: | 2399-3650 |
Aparece en las colecciones: | (CINN) Artículos |
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3Dtomo.pdf | 6,13 MB | Adobe PDF | Visualizar/Abrir |
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