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Transverse conductivity in Pr_yY_{1-y}Ba_2Cu_3O_{7-\delta } single crystals in a wide range of praseodymium concentrations |
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| Authors: | Ruslan V Vovk Georgij Ya Khadzhai Oleksandr V Dobrovolskiy |
| Institution: | 1. XLIM, Univ. Limoges, CNRS, UMR 6172, 7 rue Jules Vallès, 19100, Brive, France 2. ICMCB, Univ. Bordeaux, CNRS, UPR 9048, 87 avenue du Docteur Albert Schweitzer, 33600, Pessac Cedex, France 4. IEF, Univ. Paris-Sud, CNRS, UMR 8622, 91405, Orsay Cedex, France 5. Univ. Paris-Ouest, 92410, Ville d’Avray, France 3. IMS, Univ. Bordeaux, CNRS, UMR 5218, 16 avenue Pey Berland, 33600, Pessac Cedex, France 6. LOMA, Univ. Bordeaux, CNRS, UMR 5798, 351 Cours de la Libération, 33405, Talence Cedex, France |
| Abstract: | A single-sized dielectric cylinder-based metamaterial is fabricated from TiO2 nanoparticles, using a bottom-up approach. The sub-elements constituting the metalayer are embedded in a nonmagnetic transparent host matrix in the microwave regime and arranged in a square lattice. We demonstrate numerically and experimentally a broadband magnetic activity. The key feature to achieve this performance remains in the high aspect ratio of the metamaterial building blocks. This is a very promising step towards complex electromagnetic functions, involving low-cost metamaterials with simple fabrication. |
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