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

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

1999-06-23

arxiv.org/abs/cond-mat/9906354v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

This revised version takes into account easy-axis terms in the energy and offers a corrected phase diagram of the ferromagneti

Scientific paper

10.1103/PhysRevLett.84.127

We present the phase diagram of a ferromagnetic quantum Hall effect liquid in a narrow quantum well with vanishing single-particle Zeeman splitting, $\epsilon_{{\rm Z}}$ and pronounced spin-orbit coupling. Upon decreasing $\epsilon_{{\rm Z}}$, 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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