Spin-twist driven persistent current in a strongly correlated two-dimensional electron system: a manifestation of the gauge field

Abstract

A persistent current, coupled with the spin state, of purely many-body origin is shown to exist in Nagaoka's ferromagnetic state in two dimensions (2D). This we regard as a manifestation of a gauge field, which comes from the surrounding spin configuration and acts on the hole motion, being coupled to the Aharonov-Bohm flux. This provides an example where the electron-electron interaction exerts a profound effect involving the spins in clean two-dimensional lattice systems in sharp contrast to continuum or spinless fermion systems.

11 pages, typeset using Revtex 3.0, Phys. Rev. B in press, 2 figures available upon request at [email protected]

References in corpus (4)

• Suppression of Persistent Currents in 1-D Disordered Rings by Coulomb Interaction
• Persistent Currents in Mesoscopic Hubbard Rings with Spin-Orbit Interaction
• Strong-Correlations Versus U-Center Pairing and Fractional Aharonov-Bohm Effect
• Scaling properties of the ferromagnetic state in the Hubbard model

Cited by in corpus (7)

• Doped AB_2 Hubbard Chain: Spiral, Nagaoka and RVB States, Phase Separation and Luttinger Liquid Behavior
• Relationship between spiral and ferromagnetic states in the Hubbard model in the thermodynamic limit
• Existence of Saturated Ferromagnetic and Spiral States in 1D Lieb-Ferrimagnetic Models away from Half-Filling
• Saturated Ferromagnetism from Statistical Transmutation in Two Dimensions
• Spectral function of the spiral spin state in the trestle and ladder Hubbard model
• Ferromagnetic diagonal stripe states in the two-dimensional Hubbard model with $U\lesssim \infty$
• Optimal array geometries for kinetic magnetism and Nagaoka polarons