Macroscopic manifestation of domain-wall magnetism and magnetoelectric effect in a Néel-type skyrmion host

@article{Geirhos2020MacroscopicMO,
  title={Macroscopic manifestation of domain-wall magnetism and magnetoelectric effect in a N{\'e}el-type skyrmion host},
  author={Korbinian Geirhos and Boris Gross and Bertalan Gyorgy Szigeti and Andrea Mehlin and S. Philipp and Jonathan S. White and Robert Cubitt and Sebastian Widmann and S Ghara and Peter Lunkenheimer and V. Tsurkan and Erik Neuber and Dmytro Ivaneyko and Peter Milde and Lukas M. Eng and Andrey O. Leonov and S{\'a}ndor Bord{\'a}cs and Martino Poggio and Istv{\'a}n K{\'e}zsm{\'a}rki},
  journal={npj Quantum Materials},
  year={2020},
  volume={5},
  pages={1-8}
}
We report a magnetic state in GaV 4 Se 8 which emerges exclusively in samples with mesoscale polar domains and not in polar mono-domain crystals. It is manifested by a sharp anomaly in the magnetic susceptibility and the magnetic torque, distinct from other anomalies observed also in polar mono-domain samples upon transitions between the cycloidal, the Néel-type skyrmion lattice and the ferromagnetic states. We ascribe this additional transition to the transformation of distinct magnetic… 

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