Microscale Metasurfaces for On-Chip Magnetic Flux Concentration

Emile Fourneau, Jon Ander Arregi, Aleix Barrera, Ngoc Duy Nguyen, Simon Bending, Alvaro Sanchez, Vojtěch Uhlíř, Anna Palau, Alejandro V. Silhanek

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Magnetic metamaterials have demonstrated promising perspectives to improve the efficiency of magnetic flux concentrators. In this work, the effects of downscaling these devices for on-chip integration is investigated. The influence of the non-linear magnetic response of the ferromagnetic components, their magnetic irreversibility, the formation of magnetic domains, as well as the effects of geometry and size of the devices are scrutinized. The results demonstrate that the implementation of metasurfaces at the microscale opens up new technological possibilities for enhancing the performance of magnetic field detectors and remotely charging small electric devices, thus paving the way toward new approaches in information and communication technologies.

Original languageEnglish
Article number2300177
Number of pages9
JournalAdvanced Materials Technologies
Issue number16
Early online date7 Apr 2023
Publication statusPublished - 25 Aug 2023

Bibliographical note

Funding Information:
This work was supported by the Fonds de la Recherche Scientifique ‐ FNRS under the programs PDR T.0204.21 and CDR J.0176.22, EraNet‐CHIST‐ERA R.8003.21, the Spanish Ministry of Science and Innovation MCIN/ AEI /10.13039/501100011033/ through CHIST‐ERA PCI2021‐122028‐2A and PCI2021‐122083‐2A cofinanced by the European Union Next Generation EU/PRTR,HTSUPERFUN PID2021‐124680OB‐I00 cofinanced by ERDF a way of making Europe and FIP‐2020 METAMAG. The Research Foundation and by COST (European Cooperation in Science and Technology) [ www.cost.eu ] through COST Action SUPERQUMAP (CA 21144). Access to the CEITEC Nano Research Infrastructure was supported by the Ministry of Education, Youth, and Sports (MEYS) of the Czech Republic under the project CzechNanoLab (LM2018110). J.A.A. and V.U. acknowledge the support from the TACR EraNet CHIST‐ERA project MetaMagIC TH77010001. E.F. and A.V.S. gratefully acknowledge B. Vanderheyden for the fruitful discussions and proofreading. S. J. B. was supported by the Engineering and Physical Sciences Research Council (EPSRC) in the United Kingdom under Grant No. EP/W022680/1.

Data Availability Statement
The data that support the findings of this study are available from the corresponding author upon reasonable request.


  • magnetic flux concentrators
  • metamaterials
  • metasurfaces
  • micromagnetism

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering


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