Spin-flip excitations in a quantum Hall electron system at fixed filling factor nu=2 are modelled and studied under conditions of a strong Coulomb interaction when the `Landau level mixing' is a dominant factor determining the excitation energy. The `one-exciton' approach used for the purely electronic excitations in question allows us to describe the Stoner transition from the unpolarized/paramgnet state to the polarized/ferromagnet one. The theoretical results are compared with the available experimental data.
@article{arxiv.2007.02827,
title = {Spin-flip excitations and Stoner ferromagnetism in a strongly correlated quantum Hall system},
author = {S. Dickmann and B. D. Kaysin},
journal= {arXiv preprint arXiv:2007.02827},
year = {2020}
}