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Skyrmion Liquid Phase of the Quantum Ferromagnet in Two Dimensions

J. P. Rodriguez
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Abstract

The two-dimensional quantum ferromagnet filled with a liquid of skyrmions is studied theoretically in the context of the quantum Hall effect near electronic filling factor $ν= 1$. A cross-over between the classical ferromagnetic phase at $ν=1$ and a classical paramagnetic phase at $ν\neq 1$ is obtained, which is consistent with recent Knight-shift measurements. A new collective mode associated with the skyrmion liquid that is of the cyclotron type is also identified.

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J. P. Rodriguez. 1998-04-14. Skyrmion Liquid Phase of the Quantum Ferromagnet in Two Dimensions. https://arxiv.org/abs/cond-mat/9611152

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