882 citations · 3.4k across the 70 of their papers we have counts for
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Memory of topologically constrained disorder in Shakti artificial spin ice
Priyanka Priyanka, Cristiano Nisoli, Yair Shokef
Complex behaviors often sit at a critical threshold between order and disorder. But not all disorder is created equal. Disorder can be trivial or constrained, and correlated disord…
Kagome qubit ice
Alejandro Lopez-Bezanilla, Jack Raymond, Kelly Boothby +3
Topological phases of spin liquids with constrained disorder can host a kinetics of fractionalized excitations. However, spin-liquid phases with distinct kinetic regimes have prove…
Gauge-Free Duality in Pure Square Spin Ice: Topological Currents and Monopoles
Cristiano Nisoli
We consider a pure square spin ice, that is a square ice where only nearest neighbors are coupled. A gauge-free duality between the perpendicular and collinear structure leads to a…
On the Degeneracy of Spin Ice Graphs, and its Estimate via the Bethe Permanent
Francesco Caravelli, Michael Saccone, Cristiano Nisoli
The concept of spin ice can be extended to a general graph. We study the degeneracy of spin ice graph on arbitrary interaction structures via graph theory. Via the mapping of spin…
Classical topological order of the Rys F-model and its breakdown in realistic spin ice: Topological sectors of Faraday loops
Cristiano Nisoli
Both the Rys F-model and antiferromagnetic square ice posses the same ordered, antiferromagnetic ground state, but the ordering transition is of second order in the latter, and of…
Ice Rule Fragility via Topological Charge Transfer in Artificial Colloidal Ice
Andras Libal, Don Yun Lee, Antonio Ortiz-Ambriz +4
Artificial particle ices are model systems of constrained, interacting particles. They have been introduced theoretically to study ice-manifolds emergent from frustration, along wi…
Dumping Topological Charges on Neighbors: Ice Manifolds for Colloids and Vortices
Cristiano Nisoli
We investigate the recently reported analogies between pinned vortices in nano-structured superconductors or colloids in optical traps, and spin ice materials. The frustration of c…
On the Equivalence of Trapped Colloids, Pinned Vortices, and Spin Ice
Cristiano Nisoli
We investigate the recently reported analogies between pinned vortices in nano-structured superconductors or colloids in optical traps, and spin ice materials. The frustration of t…
Quasi-One-Dimensional Thermal Breakage
Cristiano Nisoli, Douglas Abraham, Turab Lookman +1
Breakage is generally understood in mechanical terms, yet nano-structures can rupture not only under external loads but also via thermal activation. Here we treat in a general fram…
Unhappy Vertices in Artificial Spin Ice: Degeneracy from Vertex-Frustration
Muir J. Morrison, Tammie R. Nelson, Cristiano Nisoli
In 1935, Pauling estimated the residual entropy of water ice with remarkable accuracy by considering the degeneracy of the ice rule {\it solely at the vertex level}. Indeed, his es…
Direct entropy determination and application to artificial spin ice
Paul E. Lammert, Xianglin Ki, Jie Li +4
From thermodynamic origins, the concept of entropy has expanded to a range of statistical measures of uncertainty, which may still be thermodynamically significant. However, labora…
Effective Temperature in an Interacting, Externally Driven, Vertex System: Theory and Experiment on Artificial Spin Ice
Cristiano Nisoli, Jie Li, Xianglin Ke +3
Frustrated arrays of interacting single-domain nanomagnets provide important model systems for statistical mechanics, because they map closely onto well-studied vertex models and a…