Vladimir I. Fal'ko, S. V. Iordanski
Published 1999-06-23, updated 1999-10-10Version 2
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.
Comments: This revised version takes into account easy-axis terms in the energy and offers a corrected phase diagram of the ferromagnetic QHE liquid. Analysis is extended over higher filling factors
Resistance Spikes at Transitions between Quantum Hall Ferromagnets
Topological defects and Goldstone excitations in domain walls between ferromagnetic quantum Hall effect liquids
Improved Composite-Boson Theory of Quantum Hall Ferromagnets and Skyrmions without Sigma Models
