Results 1 to 10 of about 73,612 (114)

Topological frustration of artificial spin ice [PDF]

open access: yesNature Communications, 2017
Frustrated systems display rich behaviour due to unsatisfied competing interactions. Here, the authors report extended frustration by introducing controlled topological defects into square artificial spin ice lattices, demonstrating the potential of ...
Jasper Drisko   +2 more
doaj   +5 more sources

Defect-induced monopole injection and manipulation in artificial spin ice [PDF]

open access: yesNature Communications, 2022
Artificial spin ice systems offer a promising platform to study the motion of emergent magnetic monopoles, but controlled nucleation of monopoles is challenging.
Robert Puttock   +6 more
doaj   +2 more sources

Magnetic charge propagation upon a 3D artificial spin-ice [PDF]

open access: yesNature Communications, 2021
Two-dimensional artificial spin-ice systems have been studied for over 15 years but do not capture the detailed geometry of their bulk counterparts. Here, the authors fabricate a three-dimensional artificial spin-ice and show that the surface termination
A. May   +5 more
doaj   +2 more sources

Nonlinear multi-magnon scattering in artificial spin ice [PDF]

open access: yesNature Communications, 2023
Magnons, the quantum-mechanical fundamental excitations of magnetic solids, are bosons whose number does not need to be conserved in scattering processes.
Sergi Lendinez   +5 more
doaj   +2 more sources

String Phase in an Artificial Spin Ice [PDF]

open access: yesNature Communications, 2021
Strings of local excitations are interesting features of a strongly correlated topological quantum matter. Here, the authors show that Boltzmann-distributed strings of local excitations also describe the topological physics of the Santa Fe geometry of ...
Xiaoyu Zhang   +15 more
doaj   +2 more sources

Fragmentation of magnetism in artificial kagome dipolar spin ice [PDF]

open access: yesNature Communications, 2016
By nanofabricating arrays of dipolar-coupled bistable single-domain nanomagnets, artificial model systems exhibiting collective ordering may be realized.
Benjamin Canals   +9 more
doaj   +3 more sources

Real-space observation of ergodicity transitions in artificial spin ice [PDF]

open access: yesNature Communications, 2023
Ever since its introduction by Ludwig Boltzmann, the ergodic hypothesis became a cornerstone analytical concept of equilibrium thermodynamics and complex dynamic processes.
Michael Saccone   +6 more
doaj   +2 more sources

Dynamics and hysteresis in square lattice artificial spin ice [PDF]

open access: yesNew Journal of Physics, 2013
Dynamical effects under geometrical frustration are considered in a model for artificial spin ice on a square lattice in two dimensions. Each island of the spin ice has a three-component Heisenberg-like dipole moment subject to shape anisotropies that ...
G M Wysin   +3 more
doaj   +3 more sources

Clocked dynamics in artificial spin ice [PDF]

open access: yesNature Communications
Artificial spin ice (ASI) are nanomagnetic metamaterials with a wide range of emergent properties. Through local interactions, the magnetization of the nanomagnets self-organize into extended magnetic domains.
Johannes H. Jensen   +8 more
doaj   +2 more sources

Perpendicular-anisotropy artificial spin ice with spontaneous ordering: a platform for reservoir computing with flexible timescales [PDF]

open access: yesCommunications Engineering
Arrays of coupled nanomagnets have wide-ranging fundamental and practical applications in artificial spin ices, reservoir computing and spintronics. However, lacking in these fields are nanomagnets with perpendicular magnetic anisotropy with sufficient ...
Aleksandr Kurenkov   +6 more
doaj   +2 more sources

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