Robust Formation of Ultrasmall Room-Temperature Neél Skyrmions in Amorphous Ferrimagnets from Atomistic Simulations

  title={Robust Formation of Ultrasmall Room-Temperature Ne{\'e}l Skyrmions in Amorphous Ferrimagnets from Atomistic Simulations},
  author={Chung Ting Ma and Yunkun Xie and Howard Sheng and Avik W. Ghosh and S. Joseph Poon},
  journal={Scientific Reports},
Neél skyrmions originate from interfacial Dzyaloshinskii Moriya interaction (DMI). Recent studies have explored using thin-film ferromagnets and ferrimagnets to host Neél skyrmions for spintronic applications. However, it is unclear if ultrasmall (10 nm or less) skyrmions can ever be stabilized at room temperature for practical use in high density parallel racetrack memories. While thicker films can improve stability, DMI decays rapidly away from the interface. As such, spins far away from the… 

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