Results 51 to 60 of about 73,779 (261)
Chiral switching and dynamic barrier reductions in artificial square ice
New Journal of Physics, 2021 Collective dynamics in lithographically-defined artificial spin ices offer profound insights into emergent correlations and phase transitions of geometrically-frustrated Ising spin systems.
Naëmi Leo +12 more
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Reconfigurable Pinwheel Artificial-Spin-Ice and Superconductor Hybrid Device [PDF]
Nano Letters, 2020 The ability to control the potential landscape in a medium of interacting particles could lead to intriguing collective behavior and innovative functionalities. Here, we utilize spatially reconfigurable magnetic potentials of a pinwheel artificial spin ice structure to tailor the motion of superconducting vortices. The reconstituted chain structures of
Yang-Yang Lyu +11 more
openaire +3 more sources
Avalanches and disorder-induced criticality in artificial spin ices
New Journal of Physics, 2014 We show that both square and kagome artificial spin ice systems exhibit disorder-induced nonequilibrium phase transitions, with power law avalanche distributions at the critical disorder level.
Gia-Wei Chern +2 more
doaj +1 more source
Quenched dynamics of artificial colloidal spin ice
Physical Review Research, 2020 Artificial spin ices are ideal frustrated model systems in which to explore or design emergent phenomena with unprecedented characterization of the constituent degrees of freedom. In square spin ice, violations of the ice rule are topological excitations
A. Libál +4 more
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Degeneracy and criticality from emergent frustration in artificial spin ice
, 2013 Although initially introduced to mimic the spin-ice pyrochlores, no artificial spin ice has yet exhibited the expected degenerate ice-phase with critical correlations similar to the celebrated Coulomb phase in the pyrochlore lattice.
Chern, Gia-Wei +2 more
core +1 more source
Direct imaging of long-range ferromagnetic and antiferromagnetic order in a dipolar metamaterial [PDF]
, 2020 Magnetic metamaterials such as artificial spin ice offer a route to tailor magnetic properties. Such materials can be fabricated by lithographically defining arrays of nanoscale magnetic islands.
Arenholz, Elke +8 more
core +2 more sources
Experimental Studies of Artificial Spin Ice [PDF]
, 2021 Book chapter contribution to "Spin Ice" edited by Masafumi Udagawa and Ludovic ...
openaire +2 more sources
Dynamics of reconfigurable artificial spin ice: Toward magnonic functional materials
APL Materials, 2020 Over the past few years, the study of magnetization dynamics in artificial spin ices has become a vibrant field of study. Artificial spin ices are ensembles of geometrically arranged, interacting magnetic nanoislands, which display frustration by design.
Sebastian Gliga +2 more
doaj +1 more source
Modal Frustration and Periodicity Breaking in Artificial Spin Ice [PDF]
Small, 2020 AbstractHere, an artificial spin ice lattice is introduced that exhibits unique Ising and non‐Ising behavior under specific field switching protocols because of the inclusion of coupled nanomagnets into the unit cell. In the Ising regime, a magnetic switching mechanism that generates a uni‐ or bimodal distribution of states dependent on the alignment ...
Puttock, Robert +6 more
openaire +4 more sources
AIP Advances, 2017 A new artificial spin ice lattice called vortex lattice is proposed based on the Kagome lattice. Monte Carlo simulations were performed to investigate the magnetization reversal process of the new artificial spin ice lattice at ...
Liju Yu +8 more
doaj +1 more source