Spin-selective electronic reconstruction in quantum ferromagnets: A view from the spin-asymmetric Hubbard model

J. Faúndez, T. N. Jorge, and L. Craco
Phys. Rev. B 97, 115149 – Published 26 March 2018

Abstract

Using the tight-binding treatment for the spin-asymmetric Hubbard model we explore the effect of electronic interactions in the ferromagnetic, partially filled Lieb lattice. As a key result we demonstrate the formation of correlation satellites in the minority spin channel. In addition, we consider the role played by transverse-field spin fluctuations in metallic ferromagnets. We quantify the degree of electronic demagnetization, showing that the half-metallic state is rather robust to local spin flips. Not being restricted to the case of a partially filled Lieb lattice, our findings are expected to advance the general understanding of spin-selective electronic reconstruction in strongly correlated quantum ferromagnets.

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  • Received 6 September 2017
  • Revised 8 November 2017

DOI:https://doi.org/10.1103/PhysRevB.97.115149

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

J. Faúndez1, T. N. Jorge1,2, and L. Craco1,3,*

  • 1Instituto de Física, Universidade Federal de Mato Grosso, 78060-900 Cuiabá, MT, Brazil
  • 2Campus Floresta, Universidade Federal do Acre, 69980-000 Cruzeiro do Sul, AC, Brazil
  • 3IFW Dresden, Institute for Solid State Research, P.O. Box 270116, D-01171 Dresden, Germany

  • *lcraco@fisica.ufmt.br

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Issue

Vol. 97, Iss. 11 — 15 March 2018

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