Ice, glass, and solid phases in artificial spin systems with quenched disorder
arXiv:2102.05251 · doi:10.1063/5.0046083
Abstract
We present a numerical study on a disordered artificial spin-ice system which interpolates between the long-range ordered square ice and the fully degenerate shakti ice. Starting from the square-ice geometry, disorder is implemented by adding vertical/horizontal magnetic islands to the center of some randomly chosen square plaquettes of the array, at different densities. When no island is added we have ordered square ice. When all square plaquettes have been modified we obtain shakti ice, which is disordered yet in a topological phase corresponding to the Rys F-model. In between, geometrical frustration due to these additional center spins disrupts the long-range Ising order of square-ice, giving rise to a spin-glass regime at low temperatures. The artificial spin system proposed in our work provides an experimental platform to study the interplay between quenched disorder and geometrical frustration.
arXiv comment6 pages, 6 figures
References in corpus (16)
- Exchange Monte Carlo Method and Application to Spin Glass Simulations
- Artificial "spin ice" in a geometrically frustrated lattice of nanoscale ferromagnetic islands
- Spin-lattice coupling in frustrated antiferromagnets
- Colloquium: Artificial spin ice: Designing and imaging magnetic frustration
- The frustration-based approach of supercooled liquids and the glass transition: a review and critical assessment
- Unhappy Vertices in Artificial Spin Ice: Degeneracy from Vertex-Frustration
- Spin Freezing in Geometrically Frustrated Antiferromagnets with Weak Disorder
- Frustration and thermalisation in an artificial magnetic quasicrystal
- Degeneracy and criticality from emergent frustration in artificial spin ice
- Spin-glass transition in bond-disordered Heisenberg antiferromagnets coupled with local lattice distortions on a pyrochlore lattice
- Aging, memory, and nonhierarchical energy landscape of spin jam
- Heterogeneous freezing in a geometrically frustrated spin model without disorder: spontaneous generation of two time-scales
- Vacancy-induced spin textures and their interactions in a classical spin liquid
- Spin Jam: a quantum-fluctuation-induced glassy state of a frustrated magnet
- Jammed spin liquid in the bond-disordered kagome Heisenberg antiferromagnet
- Classical topological order of the Rys F-model and its breakdown in realistic spin ice: Topological sectors of Faraday loops