Large intrinsic anomalous Hall effect in SrIrO3 induced by magnetic proximity effect
| Autor: | Xiao Wang, A. Rivera, A. Barthélémy, Daniel Haskel, Jacobo Santamaria, Javier E. Villegas, S. G. E. te Velthuis, Mariona Cabero, David Keavney, Narayan Mohanta, Yongseong Choi, Fernando Gallego, Javier Tornos, Manuel Valvidares, Stephan Rosenkranz, John W. Freeland, Myoung-Woo Yoo, José M. González-Calbet, Abdelmadjid Anane, Manuel Bibes, Anke Sander, J. Strempfer, A. Peralta, Hari Babu Vasili, G. Sanchez-Santolino, D. Sanchez-Manzano, Satoshi Okamoto, C. Leon, Elbio Dagotto, Ling-Fang Lin |
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| Přispěvatelé: | Unité mixte de physique CNRS/Thales (UMPhy CNRS/THALES), THALES-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Magnetism
Science General Physics and Astronomy 02 engineering and technology 01 natural sciences General Biochemistry Genetics and Molecular Biology Condensed Matter::Materials Science Hall effect 0103 physical sciences Proximity effect (superconductivity) Symmetry breaking 010306 general physics Physics [PHYS]Physics [physics] Multidisciplinary Condensed matter physics Spintronics Física de materiales General Chemistry Spin–orbit interaction 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Ferromagnetism T-symmetry Física del estado sólido Condensed Matter::Strongly Correlated Electrons 0210 nano-technology |
| Zdroj: | Nature Communications Nature Communications, Nature Publishing Group, 2021, 12 (1), ⟨10.1038/s41467-021-23489-y⟩ E-Prints Complutense. Archivo Institucional de la UCM instname Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia Nature Communications, Vol 12, Iss 1, Pp 1-9 (2021) |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-021-23489-y⟩ |
| Popis: | The anomalous Hall effect (AHE) is an intriguing transport phenomenon occurring typically in ferromagnets as a consequence of broken time reversal symmetry and spin-orbit interaction. It can be caused by two microscopically distinct mechanisms, namely, by skew or side-jump scattering due to chiral features of the disorder scattering, or by an intrinsic contribution directly linked to the topological properties of the Bloch states. Here we show that the AHE can be artificially engineered in materials in which it is originally absent by combining the effects of symmetry breaking, spin orbit interaction and proximity-induced magnetism. In particular, we find a strikingly large AHE that emerges at the interface between a ferromagnetic manganite (La_(0.7)Sr_(0.3)MnO_3) and a semimetallic iridate (SrIrO_3). It is intrinsic and originates in the proximity-induced magnetism present in the narrow bands of strong spin-orbit coupling material SrIrO_3, which yields values of anomalous Hall conductivity and Hall angle as high as those observed in bulk transition-metal ferromagnets. These results demonstrate the interplay between correlated electron physics and topological phenomena at interfaces between 3d ferromagnets and strong spin-orbit coupling 5d oxides and trace an exciting path towards future topological spintronics at oxide interfaces. The anomalous Hall effect (AHE) occurs in ferromagnets caused by intrinsic and extrinsic mechanisms. Here, Yoo et al. report large anomalous Hall conductivity and Hall angle at the interface between a ferromagnet La_(0.7)Sr_(0.3M)nO_3 and a semimetallic SrIrO_3, due to the interplay between correlated physics and topological phenomena. |
| Databáze: | OpenAIRE |
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