Engineering a skyrmion crystal in ferromagnetic/antiferromagnetic bilayers free from the DM interaction
arXiv:2207.07375 · doi:10.7566/JPSJ.91.103701
Abstract
We theoretically propose a new stabilization mechanism of a skyrmion crystal (SkX) in a bilayer triangular lattice system consisting of the ferromagnetic and the antiferromagnetic layers. By performing variational calculations and Monte Carlo simulations in a complementary way, we find that a magnetic frustration between the ferromagnetic and antiferromagnetic layers is a source of a finite-Q spiral state and the SkX in the strong interlayer coupling regime. We also show that the degree of frustration is related to the interlayer exchange interaction. The stronger interlayer coupling tends to make the effect of frustration larger, which results in the stabilization of the SkX. The present results not only provide a way of engineering the SkX in the ferromagnetic/antiferromagnetic domain and heterostructure but also imply the possibility of the SkX based on interorbital frustration scenario.
arXiv comment6 pages, 5 figures
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Cited by in corpus (3)
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- Ferrochiral, antiferrochiral, and ferrichiral skyrmion crystals in an itinerant honeycomb magnet
- Antiferro skyrmion crystal phases in a synthetic bilayer antiferromagnet under an in-plane magnetic field