Saturated Ferromagnetism from Statistical Transmutation in Two Dimensions

Abstract

The total spin of the ground state is calculated in the U -> infinity Hubbard model with uniform magnetic flux perpendicular to a square lattice, in the absence of Zeeman coupling. It is found that the saturated ferromagnetism emerges in a rather wide region in the space of the flux density ϕand the electron density n_e. In particular, the saturated ferromagnetism at ϕ= n_e is induced by the formation of a spin-1/2 boson, which is a composite of an electron and the unit flux quantum.

4 pages, 3 figures; final version

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Cited by in corpus (8)

• Classical Antiferromagnetism in Kinetically Frustrated Electronic Models
• Stable Skyrmions in spinor condensates
• Nanoscale ferromagnetism in non-magnetic doped semiconductors
• Doped AB_2 Hubbard Chain: Spiral, Nagaoka and RVB States, Phase Separation and Luttinger Liquid Behavior
• Ground-state Energies of Spinless Free Fermions and Hard-core Bosons
• Skyrmion in spinor condensates and its stability in trap potentials
• Coupled Ferromagnetic and Nematic Ordering of Fermions in an Optical Flux Lattice
• Tuning Kinetic Magnetism of Strongly Correlated Electrons via Staggered Flux