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Tuning Magnetic Soliton Phase via Dimensional Confinement in Exfoliated 2D Cr1/3NbS2 Thin Flakes.

Siwei TangRandy S FishmanSatoshi OkamotoJieyu YiQiang ZouMingming FuAn-Ping LiDavid MandrusZheng Gai
Published in: Nano letters (2018)
Thin flakes of Cr1/3NbS2 are fabricated successfully via microexfoliation techniques. Temperature-dependent and field-dependent magnetizations of thin flakes with various thicknesses are investigated. When the thickness of the flake is around several hundred nanometers, the softening and eventual disappearance of the bulk soliton peak is accompanied by the appearance of other magnetic peaks at lower magnetic fields. The emergence and annihilation of the soliton peaks are explained and simulated theoretically by the change in spin spiral number inside the soliton lattice due to dimensional confinement. Compared to the conventional magnetic states in nanoscale materials, the stability and thickness tunability of quantified spin spirals make Cr1/3NbS2 a potential candidate for spintronics nanodevices beyond Moore's law.
Keyphrases
  • molecularly imprinted
  • optical coherence tomography
  • room temperature
  • single molecule
  • density functional theory
  • atomic force microscopy
  • risk assessment
  • solid phase extraction
  • climate change
  • human health