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Spin-orbit coupling effect on quantum Hall ferromagnets with vanishing Zeeman energy

Vladimir I. Fal'ko·S. V. Iordanski
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Abstract

We present the phase diagram of a ferromagnetic quantum Hall effect liquid in a narrow quantum well with vanishing single-particle Zeeman splitting, $ε_{\rm Z}$ and pronounced spin-orbit coupling. Upon decreasing $ε_{\rm Z}$, the spin-polarization field of a liquid takes, first, the easy-axis configuration, followed by the formation of a helical state, which affects the transport and NMR properties of a liquid and the form of topological defects in it. The analysis is extended over high odd integer filling factors.

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Vladimir I. Fal'ko, S. V. Iordanski. 1999-10-10. Spin-orbit coupling effect on quantum Hall ferromagnets with vanishing Zeeman energy. https://doi.org/10.1103/physrevlett.84.127

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