Imaging non-collinear antiferromagnetic textures via single spin relaxometry
| Autor: | Vincent Cros, W. Akhtar, J.-P. Adam, S. Chouaieb, Karim Bouzehouane, Rana Tanos, Nicolas Reyren, Vincent Jacques, William Legrand, Florentin Fabre, Aurore Finco, Joo-Von Kim, Angela Haykal, Thibaut Devolder, Isabelle Robert-Philip, Fernando Ajejas |
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| Přispěvatelé: | Laboratoire Charles Coulomb (L2C), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Centre de Nanosciences et de Nanotechnologies (C2N), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), ANR-17-CE24-0025,TOPSKY,Propriétés topologiques des skyrmions magnétiques et opportunitiés pour le dévelopement de nouveaux dispositifs spintroniques(2017), European Project: 820394,ASTERIQs, European Project: 824123,SKYTOP, European Project: 866267,EXAFONIS, European Project: 846597,DIMAF |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Relaxometry
Materials science Science FOS: Physical sciences General Physics and Astronomy 02 engineering and technology Imaging techniques 01 natural sciences General Biochemistry Genetics and Molecular Biology Article Magnetization Spin wave Magnetic properties and materials Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences Antiferromagnetism 010306 general physics Spin-½ Magnonics Multidisciplinary Condensed matter physics Spintronics Condensed Matter - Mesoscale and Nanoscale Physics Magnon General Chemistry 021001 nanoscience & nanotechnology Computer Science::Computer Vision and Pattern Recognition [PHYS.COND.CM-GEN]Physics [physics]/Condensed Matter [cond-mat]/Other [cond-mat.other] Condensed Matter::Strongly Correlated Electrons 0210 nano-technology |
| Zdroj: | Nature Communications Nature Communications, 2021, 12 (1), pp.767. ⟨10.1038/s41467-021-20995-x⟩ Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021) Nature Communications, Nature Publishing Group, 2021, 12 (1), pp.767. ⟨10.1038/s41467-021-20995-x⟩ |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-021-20995-x⟩ |
| Popis: | Antiferromagnetic materials are promising platforms for next-generation spintronics owing to their fast dynamics and high robustness against parasitic magnetic fields. However, nanoscale imaging of the magnetic order in such materials with zero net magnetization remains a major experimental challenge. Here we show that non-collinear antiferromagnetic spin textures can be imaged by probing the magnetic noise they locally produce via thermal populations of magnons. To this end, we perform nanoscale, all-optical relaxometry with a scanning quantum sensor based on a single nitrogen-vacancy (NV) defect in diamond. Magnetic noise is detected through an increase of the spin relaxation rate of the NV defect, which results in an overall reduction of its photoluminescence signal under continuous laser illumination. As a proof-of-concept, the efficiency of the method is demonstrated by imaging various spin textures in synthetic antiferromagnets, including domain walls, spin spirals and antiferromagnetic skyrmions. This imaging procedure could be extended to a large class of intrinsic antiferromagnets and opens up new opportunities for studying the physics of localized spin wave modes for magnonics. 7 pages, 5 figures |
| Databáze: | OpenAIRE |
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