Advances in artificial spin ice

SH Skjærvø, CH Marrows, RL Stamps… - Nature Reviews …, 2020 - nature.com
Artificial spin ices consist of nanomagnets arranged on the sites of various periodic and
aperiodic lattices. They have enabled the experimental investigation of a variety of …

Ice-rule driven vertex frustration in a stretched pentagonal spin ice

D Crater, AC Lätti, M Saccone, K Hofhuis… - Physical Review …, 2024 - APS
We introduce the stretched pentagonal spin ice and study low-energy configurations
achieved after thermal annealing. Using synchrotron-based photoemission electron …

Quasidegenerate ice manifold in a purely two-dimensional square array of nanomagnets

Y Perrin, B Canals, N Rougemaille - Physical Review B, 2019 - APS
We investigate numerically the low-energy properties of an artificial square spin system in
which the nanomagnets are physically connected at the lattice vertex sites. Micromagnetic …

Dipolar Cairo lattice: Geometrical frustration and short-range correlations

M Saccone, K Hofhuis, YL Huang, S Dhuey, Z Chen… - Physical Review …, 2019 - APS
We have studied low-energy configurations in two-dimensional arrays consisting of Ising-
type dipolar coupled nanomagnets lithographically defined onto a two-dimensional Cairo …

The magnetic structure factor of the square ice: A phenomenological description

N Rougemaille, B Canals - Applied Physics Letters, 2021 - pubs.aip.org
We consider the sixteen vertex model, and we describe, phenomenologically, the main
features of the square ice magnetic structure factor. Using Monte Carlo simulations, we show …

Multiple energy scales in mesospin systems: The vertex-frustrated Saint George lattice

H Stopfel, UB Arnalds, A Stein, TPA Hase… - Physical Review …, 2021 - APS
The interplay between topology and energy hierarchy plays a vital role in the collective
magnetic order in artificial ferroic systems. Here we investigate, experimentally, the effect of …

Control of spin dynamics in artificial honeycomb spin-ice-based nanodisks

M Taghipour Kaffash, W Bang, S Lendinez, A Hoffmann… - Physical Review B, 2020 - APS
We report the experimental and theoretical characterization of the angular-dependent spin
dynamics in arrays of ferromagnetic nanodisks arranged on a honeycomb lattice. The …

Ising-like behaviour of mesoscopic magnetic chains

E Östman, UB Arnalds, V Kapaklis… - Journal of Physics …, 2018 - iopscience.iop.org
We demonstrate an experimental realization of the short range magnetic order in a one-
dimensional Ising chain using fabricated mesospins. We confirm an excellent agreement …

Micromagnetic simulations of magnetization reversal in kagome artificial spin ice

M Ferreira Velo, B Malvezzi Cecchi, KR Pirota - Physical Review B, 2020 - APS
This work reports micromagnetic simulations used to study magnetization reversal in
kagome artificial spin ice, taking into account the actual edge imperfections presented by the …

Magnetic monopole free motion in two-dimensional artificial spin ice

DG Duarte, LB de Oliveira, FS Nascimento… - Applied Physics …, 2024 - pubs.aip.org
Magnetic monopole motion (without its partner in a pair) as a function of external magnetic
fields is presented as a fingerprint of freedom of these emergent quasi-particles in a two …