Melting artificial spin ice
arXiv:1108.1092 · doi:10.1088/1367-2630/14/3/035009
Abstract
Artificial spin ice arrays of micromagnetic islands are a means of engineering additional energy scales and frustration into magnetic materials. Despite much progress in elucidating the properties of such arrays, the `spins' in the systems studied so far have no thermal dynamics as the kinetic constraints are too high. Here we address this problem by using a material with an ordering temperature near room temperature. By measuring the temperature dependent magnetization in different principal directions, and comparing with simulations of idealized statistical mechanical models, we confirm a dynamical `pre-melting' of the artificial spin ice structure at a temperature well below the intrinsic ordering temperature of the island material. We thus create a spin ice array that has real thermal dynamics of the artificial spins over an extended temperature range.
References in corpus (9)
- Artificial "spin ice" in a geometrically frustrated lattice of nanoscale ferromagnetic islands
- Glassy dynamics of kinetically constrained models
- Geometric Frustration in Buckled Colloidal Monolayers
- Why spin ice obeys the ice rules
- Ground state lost but degeneracy found: the effective thermodynamics of artificial spin ice
- Energy minimization and AC demagnetization in a nanomagnet array
- Realizing Colloidal Artificial Ice on Arrays of Optical Traps
- Direct entropy determination and application to artificial spin ice
- Thermodynamics of elementary excitations in artificial magnetic square ice
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