Detail publikace

Dimensional crossover of microscopic magnetic metasurfaces for magnetic field amplification

LEJEUNE, N. FOURNEAU, E. BARRERA, A. MORRIS, O. LEONARD, O. ARREGI URIBEETXEBARRIA, J. NAVAU, C. UHLÍŘ, V. BENDING, S. PALAU, A. SILHANEK, A.

Originální název

Dimensional crossover of microscopic magnetic metasurfaces for magnetic field amplification

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Transformation optics applied to low frequency magnetic systems have been recently implemented to design magnetic field concentrators and cloaks with superior performance. Although this achievement has been amply demonstrated theoretically and experimentally in bulk 3D macrostructures, the performance of these devices at low dimensions remains an open question. In this work, we numerically investigate the non-monotonic evolution of the gain of a magnetic metamaterial field concentrator as the axial dimension is progressively shrunk. In particular, we show that in planar structures, the role played by the diamagnetic components becomes negligible, whereas the paramagnetic elements increase their magnetic field channeling efficiency. This is further demonstrated experimentally by tracking the gain of superconductor-ferromagnet concentrators through the superconducting transition. Interestingly, for thicknesses where the diamagnetic petals play an important role in the concentration gain, they also help to reduce the stray field of the concentrator, thus limiting the perturbation of the external field (invisibility). Our findings establish a roadmap and set clear geometrical limits for designing low dimensional magnetic field concentrators.

Klíčová slova

microscopic magnetic metasurfaces;

Autoři

LEJEUNE, N.; FOURNEAU, E.; BARRERA, A.; MORRIS, O.; LEONARD, O.; ARREGI URIBEETXEBARRIA, J.; NAVAU, C.; UHLÍŘ, V.; BENDING, S.; PALAU, A.; SILHANEK, A.

Vydáno

1. 7. 2024

Nakladatel

AIP Publishing

Místo

MELVILLE

ISSN

2166-532X

Periodikum

APL Materials

Ročník

12

Číslo

7

Stát

Spojené státy americké

Strany od

1

Strany do

7

Strany počet

7

URL

https://pubs.aip.org/aip/apm/article/12/7/071126/3305315/Dimensional-crossover-of-microscopic-magnetic

Plný text v Digitální knihovně

http://hdl.handle.net/11012/250083

BibTex

@article{BUT190012,
  author="Nicolas {Lejeune} and Emile {Fourneau} and Aleix {Barrera} and Oliver {Morris} and Oscar {Leonard} and Jon Ander {Arregi Uribeetxebarria} and Carles {Navau} and Vojtěch {Uhlíř} and Simon {Bending} and Anna {Palau} and Alejandro Vladimiro {Silhanek}",
  title="Dimensional crossover of microscopic magnetic metasurfaces for magnetic field amplification",
  journal="APL Materials",
  year="2024",
  volume="12",
  number="7",
  pages="7",
  doi="10.1063/5.0217500",
  issn="2166-532X",
  url="https://pubs.aip.org/aip/apm/article/12/7/071126/3305315/Dimensional-crossover-of-microscopic-magnetic"
}