Nonlinear soliton confinement in weakly coupled antiferromagnetic spin chains

@article{Lane2020NonlinearSC,
  title={Nonlinear soliton confinement in weakly coupled antiferromagnetic spin chains},
  author={H. Lane and C. Stock and S. Cheong and F. Demmel and R. Ewings and F. Kruger},
  journal={Physical Review B},
  year={2020},
  volume={102},
  pages={024437}
}
We analyze the low-energy dynamics of quasi one dimensional, large-$S$ quantum antiferromagnets with easy-axis anisotropy, using a semi-classical non-linear sigma model. The saddle point approximation leads to a sine Gordon equation which supports soliton solutions. These correspond to the movement of spatially extended domain walls. Long-range magnetic order is a consequence of a weak inter-chain coupling. Below the ordering temperature, the coupling to nearby chains leads to an energy cost… Expand
1 Citations

Figures from this paper

References

SHOWING 1-10 OF 114 REFERENCES
d.
Phys
  • Rev. Lett. 117, 017201
  • 2016
Phys
  • Rev. 160, 408
  • 1967
Phys
  • Rev. B 91, 140404(R)
  • 2015
Mathematica, Version 12.1, Champaign
  • 2020
Nat
  • Commun. 10, 698 (2019). 024437-9 H. LANE et al. PHYSICAL REVIEW B 102, 024437
  • 2020
Phys
  • Rev. B 101, 014407
  • 2020
npj Quantum Mater
  • 5, 33
  • 2020
...
1
2
3
4
5
...