Itinerant-electron magnetism: the importance of many-body correlations

Abstract

Do electrons become ferromagnetic just because of their repulisve Coulomb interaction? Our calculations on the three-dimensional electron gas imply that itinerant ferromagnetim of delocalized electrons without lattice and band structure, the most basic model considered by Stoner, is suppressed due to many-body correlations as speculated already by Wigner, and a possible ferromagnetic transition lowering the density is precluded by the formation of the Wigner crystal.

published version including supplementary material

References in corpus (5)

• Itinerant Ferromagnetism in a Fermi Gas of Ultracold Atoms
• The Finite Size Error in Many-body Simulations with long-Ranged Interactions
• Phase Diagram of the Low-Density Two-Dimensional Homogeneous Electron Gas
• Diffusion quantum Monte Carlo study of three-dimensional Wigner crystals
• Iterative backflow renormalization procedure for many-body ground state wave functions of strongly interacting normal Fermi liquids

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