Dynamic Control of Topological Defects in Artificial Colloidal Ice
arXiv:1609.02129 · doi:10.1038/s41598-017-00452-w
Abstract
We demonstrate the use of an external field to stabilize and control defect lines connecting topological monopoles in spin ice. For definiteness we perform Brownian dynamics simulations with realistic units mimicking experimentally realized artificial colloidal spin ice systems, and show how defect lines can grow, shrink or move under the action of direct and alternating fields. Asymmetric alternating biasing fields can cause the defect line to ratchet in either direction, making it possible to precisely position the line at a desired location. Such manipulation could be employed to achieve fast, dense, and mobile information storage in these metamaterials.
arXiv comment17 pages, 5 figures
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Cited by in corpus (6)
- Ice Rule Fragility via Topological Charge Transfer in Artificial Colloidal Ice
- Unexpected Phenomenology in Particle-Based Ice Absent in Magnetic Spin Ice
- Quenched Dynamics of Artificial Spin Ice: Coarsening versus Kibble-Zurek
- Tension-free Dirac strings and steered magnetic charges in 3D artificial spin ice
- Topology Restricts Quasidegeneracy in Sheared Square Colloidal Ice
- Topology by Design in Magnetic nano-Materials: Artificial Spin Ice