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Skyrmion Formation in Nanodisks Using Magnetic Force Microscopy Tip.

Mateusz ZelentIuliia V VetrovaJan ŠoltýsXiaoguang LiYan ZhouVladislav A GubanovAlexandr V SadovnikovTomas ŠcepkaJan DérerRoman StoklasVladimír CambelMichal Mruczkiewicz
Published in: Nanomaterials (Basel, Switzerland) (2021)
We demonstrated numerically the skyrmion formation in ultrathin nanodisks using a magnetic force microscopy tip. We found that the local magnetic field generated by the magnetic tip significantly affects the magnetization state of the nanodisks and leads to the formation of skyrmions. Experimentally, we confirmed the influence of the local field on the magnetization states of the disks. Micromagnetic simulations explain the evolution of the magnetic state during magnetic force microscopy scanning and confirm the possibility of skyrmion formation. The formation of the horseshoe magnetic domain is a key transition from random labyrinth domain states into the skyrmion state. We showed that the formation of skyrmions by the magnetic probe is a reliable and repetitive procedure. Our findings provide a simple solution for skyrmion formation in nanodisks.
Keyphrases
  • molecularly imprinted
  • single molecule
  • high resolution
  • optical coherence tomography
  • high speed
  • molecular dynamics
  • living cells
  • quantum dots
  • mass spectrometry
  • high efficiency