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  • Letter
  • Open Access

Quantum magnetic skyrmions on Kondo-type lattices

Zhen Zhao1,*, Emil Östberg1,†, Ferdi Aryasetiawan1,2,‡, and Claudio Verdozzi1,2,§

  • *Contact author: zhen.zhao@teorfys.lu.se
  • †Contact author: emil.ostberg@teorfys.lu.se
  • ‡Contact author: ferdi.aryasetiawan@teorfys.lu.se
  • §Contact author: claudio.verdozzi@teorfys.lu.se
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Phys. Rev. Research 7, L032012 – Published 10 July, 2025

DOI: https://doi.org/10.1103/pwc5-552d

Abstract

A quantum description is given of nanoskyrmions in two-dimensional textures with localized spins and itinerant electrons, isolated or coupled to leads, in or out of equilibrium. The spin-electron exchange is treated at the mean-field level, while tensor networks and exact diagonalization or nonequilibrium Green's functions are used for localized spins and itinerant electrons. We motivate our scheme via exact and mean-field benchmarks, then show by several examples that itinerant electrons distinctly affect the properties of quantum nanoskyrmions. Finally, we mention lines of future work and improvement of the approach.

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Phys. Rev. Research 7, L032012– Published 10 July, 2025
  • Received 21 May 2024
  • Accepted 18 June 2025
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by Bibsam.

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