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Quantum magnetic skyrmions on Kondo-type lattices

Zhao, Zhen LU ; Östberg, Emil LU ; Aryasetiawan, Ferdi LU and Verdozzi, Claudio LU (2025) In Physical Review Research 7.
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.
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Research
volume
7
publisher
American Physical Society
ISSN
2643-1564
DOI
10.1103/pwc5-552d
language
English
LU publication?
yes
id
11f311ca-ffbd-4e2d-b797-3e71a6540b26
date added to LUP
2025-08-27 13:29:31
date last changed
2025-08-27 14:32:10
@article{11f311ca-ffbd-4e2d-b797-3e71a6540b26,
  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.}},
  author       = {{Zhao, Zhen and Östberg, Emil and Aryasetiawan, Ferdi and Verdozzi, Claudio}},
  issn         = {{2643-1564}},
  language     = {{eng}},
  month        = {{07}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Research}},
  title        = {{Quantum magnetic skyrmions on Kondo-type lattices}},
  url          = {{http://dx.doi.org/10.1103/pwc5-552d}},
  doi          = {{10.1103/pwc5-552d}},
  volume       = {{7}},
  year         = {{2025}},
}