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  • Letter
  • Open Access

Planar magnetic Paul traps for ferromagnetic particles

M. Perdriat, C. Pellet-Mary, T. Copie, and G. Hétet

  • Laboratoire de Physique de l'École Normale Supérieure, École Normale Supérieure, PSL Research University, CNRS, Sorbonne Université, Université Paris Cité, 24 rue Lhomond, 75231 Paris Cedex 05, France

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Phys. Rev. Research 5, L032045 – Published 28 September, 2023

DOI: https://doi.org/10.1103/PhysRevResearch.5.L032045

Abstract

We present a study on the trapping of hard ferromagnetic particles using alternating magnetic fields, with a focus on planar trap geometries. First, we realize and characterize a magnetic Paul trap design for millimeter-size magnets based on a rotating magnetic potential. Employing a physically rotating platform with two pairs of permanent magnets with opposite poles, we show stable trapping of hard ferromagnets a centimeter above the trap and demonstrate that the particle shape plays a critical role in the trapping. Finally, we propose a chip trap design that will open a path to studies of gyromagnetic effects with ferromagnetic microparticles.

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References (32)

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Phys. Rev. Research 5, L032045– Published 28 September, 2023
  • Received 21 December 2022
  • Accepted 8 June 2023
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