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Título: | Direct X-Ray Detection of the Spin Hall Effect in CuBi |
Autor: | Ruiz-Gómez, Sandra; Guerrero, Rubén; Khaliq, Muhammad W.; Fernández-González, Claudia; Prat, Jordi; Valera, Andrés; Finizio, Simone; Perna, Paolo; Camarero, Julio; Pérez, Lucas CSIC ORCID CVN; Aballe, Lucía; Foerster, Michael | Fecha de publicación: | 1-jul-2022 | Editor: | American Physical Society | Citación: | Physical Review X 12: 031032 (2022) | Resumen: | The spin Hall effect and the inverse spin Hall effect are important spin-charge conversion mechanisms. The direct spin Hall effect induces a surface spin accumulation from a transverse charge current due to spin-orbit coupling even in nonmagnetic conductors. However, most detection schemes involve additional interfaces, leading to large scattering in reported data. Here we perform interface-free x-ray spectroscopy measurements at the Cu L3,2 absorption edges of highly Bi-doped Cu (Cu95Bi5). The detected x-ray magnetic circular dichroism signal corresponds to an induced magnetic moment of (2.2±0.5)×10-12 μB A-1 cm2 per Cu atom averaged over the probing depth, which is of the same order of magnitude as found for Pt measured by magneto-optics. The results highlight the importance of interface-free measurements to assess material parameters and the potential of CuBi for spin-charge conversion applications. | Descripción: | 13 pags., 12 figs., 8 apps. -- Subject Areas: Condensed Matter Physics, Spintronics | Versión del editor: | https://doi.org/10.1103/PhysRevX.12.031032 | URI: | http://hdl.handle.net/10261/296081 | DOI: | 10.1103/PhysRevX.12.031032 | E-ISSN: | 2160-3308 |
Aparece en las colecciones: | (IQF) Artículos |
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