Scientific Reports (Aug 2021)

Generation and collective interaction of giant magnetic dipoles in laser cluster plasma

  • A. Andreev,
  • K. Platonov,
  • Zs. Lécz,
  • N. Hafz

DOI
https://doi.org/10.1038/s41598-021-95465-x
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 9

Abstract

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Abstract Interaction of circularly polarized laser pulses with spherical nano-droplets generates nanometer-size magnets with lifetime on the order of hundreds of femtoseconds. Such magnetic dipoles are close enough in a cluster target and magnetic interaction takes place. We investigate such system of several magnetic dipoles and describe their rotation in the framework of Lagrangian formalism. The semi-analytical results are compared to particle-in-cell simulations, which confirm the theoretically obtained terrahertz frequency of the dipole oscillation.