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arXiv · 1910.06554

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

Makus Holzmann·Saverio Moroni
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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.

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Makus Holzmann, Saverio Moroni. 2019-10-15. Itinerant-electron magnetism: the importance of many-body correlations. https://doi.org/10.1103/physrevlett.124.206404

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