Publication detail

Approaching the Topological Low-Energy Physics of the F Model in a Two-Dimensional Magnetic Lattice

SCHÁNILEC, V. BRUNN, O. HORÁČEK, M. KRÁTKÝ, S. MELUZÍN, P. ŠIKOLA, T. CANALS, B. ROUGEMAILLE, N.

Original Title

Approaching the Topological Low-Energy Physics of the F Model in a Two-Dimensional Magnetic Lattice

Type

journal article in Web of Science

Language

English

Original Abstract

We demonstrate that the physics of the F model can be approached very closely in a two-dimensional artificial magnetic system. Faraday lines spanning across the lattice and carrying a net polarization, together with chiral Faraday loops characterized by a zero magnetic susceptibility, are imaged in real space using magnetic force microscopy. Our measurements reveal the proliferation of Faraday lines and Faraday loops as the system is brought from low- to high-energy magnetic configurations. They also reveal a link between the Faraday loop density and icelike spin-spin correlations in the magnetic structure factor. Key for this Letter, the density of topological defects remains small, on the order of 1% or less, and negligible compared to the density of Faraday loops. This is made possible by replacing the spin degree of freedom used in conventional lattices of interacting nanomagnets by a micromagnetic knob, which can be finely tuned to adjust the vertex energy directly, rather than modifying the two-body interactions.

Keywords

ARTIFICIAL SPIN-ICE; DOMAIN-WALLS; 3RD LAW; ENTROPY; HYDROGEN; THERMODYNAMICS; DEGENERACY; PHASE; WATER

Authors

SCHÁNILEC, V.; BRUNN, O.; HORÁČEK, M.; KRÁTKÝ, S.; MELUZÍN, P.; ŠIKOLA, T.; CANALS, B.; ROUGEMAILLE, N.

Released

7. 7. 2022

Publisher

AMER PHYSICAL SOC

Location

COLLEGE PK

ISBN

1079-7114

Periodical

Physical Review Letters

Year of study

129

Number

2

State

United States of America

Pages from

027202

Pages to

27207

Pages count

6

URL

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.129.027202

BibTex

@article{BUT179256,
  author="Vojtěch {Schánilec} and Ondřej {Brunn} and Miroslav {Horáček} and Stanislav {Krátký} and Petr {Meluzín} and Tomáš {Šikola} and Benjamin {Canals} and Nicolas {Rougemaille}",
  title="Approaching the Topological Low-Energy Physics of the F Model in a Two-Dimensional Magnetic Lattice",
  journal="Physical Review Letters",
  year="2022",
  volume="129",
  number="2",
  pages="6",
  doi="10.1103/PhysRevLett.129.027202",
  issn="1079-7114",
  url="https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.129.027202"
}