Antiferromagnetic order in hybrid electromagnetic metamaterials
We demonstrate experimentally a new type of order in optical magnetism resembling the staggered structure of spins in antiferromagnetic ordered materials. We study hybrid electromagnetic metasurfaces created by assembling hybrid meta-atoms formed by metallic split-ring resonators and dielectric part...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2017-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aa6a33 |
| _version_ | 1797750772763459584 |
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| author | Andrey E Miroshnichenko Dmitry Filonov Boris Lukyanchuk Yuri Kivshar |
| author_facet | Andrey E Miroshnichenko Dmitry Filonov Boris Lukyanchuk Yuri Kivshar |
| author_sort | Andrey E Miroshnichenko |
| collection | DOAJ |
| description | We demonstrate experimentally a new type of order in optical magnetism resembling the staggered structure of spins in antiferromagnetic ordered materials. We study hybrid electromagnetic metasurfaces created by assembling hybrid meta-atoms formed by metallic split-ring resonators and dielectric particles with a high refractive index, both supporting optically-induced magnetic dipole resonances of different origin. Each pair (or ‘metamolecule’) is characterized by two interacting magnetic dipole moments with the distance-dependent magnetization resembling the spin exchange interaction in magnetic materials. By directly mapping the structure of the electromagnetic fields, we demonstrate experimentally that strong coupling between the optically-induced magnetic moments of different origin can flip the magnetisation orientation in a metamolecule creating an antiferromagnetic lattice of staggered optically-induced magnetic moments in hybrid metasurfaces. |
| first_indexed | 2024-03-12T16:38:45Z |
| format | Article |
| id | doaj.art-af74fa7df3274e47a0743a6ca1dba5fd |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:38:45Z |
| publishDate | 2017-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-af74fa7df3274e47a0743a6ca1dba5fd2023-08-08T14:38:27ZengIOP PublishingNew Journal of Physics1367-26302017-01-0119808301310.1088/1367-2630/aa6a33Antiferromagnetic order in hybrid electromagnetic metamaterialsAndrey E Miroshnichenko0Dmitry Filonov1Boris Lukyanchuk2Yuri Kivshar3Nonlinear Physics Centre, Research School of Physics and Engineering, Australian National University , Canberra ACT, 2601 AustraliaITMO University , St. Petersburg, 197101 RussiaData Storage Institute, A*STAR, (Agency for Science, Technology and Research), 2 Fusionopolis Way, Kinesis, 138634 Singapore; Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore; Faculty of Physics, Lomonosov Moscow State University, 119991 RussiaNonlinear Physics Centre, Research School of Physics and Engineering, Australian National University , Canberra ACT, 2601 Australia; ITMO University , St. Petersburg, 197101 RussiaWe demonstrate experimentally a new type of order in optical magnetism resembling the staggered structure of spins in antiferromagnetic ordered materials. We study hybrid electromagnetic metasurfaces created by assembling hybrid meta-atoms formed by metallic split-ring resonators and dielectric particles with a high refractive index, both supporting optically-induced magnetic dipole resonances of different origin. Each pair (or ‘metamolecule’) is characterized by two interacting magnetic dipole moments with the distance-dependent magnetization resembling the spin exchange interaction in magnetic materials. By directly mapping the structure of the electromagnetic fields, we demonstrate experimentally that strong coupling between the optically-induced magnetic moments of different origin can flip the magnetisation orientation in a metamolecule creating an antiferromagnetic lattice of staggered optically-induced magnetic moments in hybrid metasurfaces.https://doi.org/10.1088/1367-2630/aa6a33metasurfacesoptically-induced magnetic resonanceantiferromagnetic order |
| spellingShingle | Andrey E Miroshnichenko Dmitry Filonov Boris Lukyanchuk Yuri Kivshar Antiferromagnetic order in hybrid electromagnetic metamaterials New Journal of Physics metasurfaces optically-induced magnetic resonance antiferromagnetic order |
| title | Antiferromagnetic order in hybrid electromagnetic metamaterials |
| title_full | Antiferromagnetic order in hybrid electromagnetic metamaterials |
| title_fullStr | Antiferromagnetic order in hybrid electromagnetic metamaterials |
| title_full_unstemmed | Antiferromagnetic order in hybrid electromagnetic metamaterials |
| title_short | Antiferromagnetic order in hybrid electromagnetic metamaterials |
| title_sort | antiferromagnetic order in hybrid electromagnetic metamaterials |
| topic | metasurfaces optically-induced magnetic resonance antiferromagnetic order |
| url | https://doi.org/10.1088/1367-2630/aa6a33 |
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