The theoretical study considers chiral spin texture induced in a 2D electron gas (2DEG) by magnetic skyrmions. We calculate the electron gas spin density as a linear response to the exchange interaction between the 2DEG and the magnetization field of a magnetic skyrmion. Two physically distinct regimes occur. When the size of the skyrmion is larger than the inverse Fermi wavevector kF−1, the spin density response follows the magnetization profile of the skyrmion. In the opposite case of a small skyrmion the emerging spin structure of 2DEG has a characteristic size of kF−1 and the response becomes non-local, it can be viewed as chiral Friedel oscillations. At that, the emerging spin structure of the oscillations appears to be more complex than that of the skyrmion itself.
@article{arxiv.1911.06761,
title = {Chiral spin structure of electron gas in systems with magnetic skyrmions},
author = {L. A. Yung and K. S. Denisov and I. V. Rozhansky and N. S. Averkiev and E. Lahderanta},
journal= {arXiv preprint arXiv:1911.06761},
year = {2020}
}