Comparing artificial frustrated magnets: tuning symmetry in nanomagnet arrays
arXiv:1003.1505 · doi:10.1103/PhysRevB.81.092406
Abstract
We study the impact of geometry on magnetostatically frustrated single-domain nanomagnet arrays. We examine square and hexagonal lattice arrays, as well as a brickwork geometry that combines the anisotropy of the square lattice and the topology of the hexagonal lattice. We find that the more highly frustrated hexagonal lattice allows for the most thorough minimization of the magnetostatic energy, and that the pair-wise correlations between moments differ qualitatively between hexagonal and brickwork lattices, although they share the same lattice topology. The results indicate that the symmetry of local interaction is more important than overall lattice topology in the accommodation of frustrated interactions.
arXiv comment18 pages and 4 figures
References in corpus (12)
- Artificial "spin ice" in a geometrically frustrated lattice of nanoscale ferromagnetic islands
- Direct observation of the ice rule in artificial kagome spin ice
- Spin Correlations in HoTiO: a Dipolar Spin Ice System
- Geometric Frustration in Buckled Colloidal Monolayers
- Magnetic multipole analysis of kagome and artificial ice dipolar arrays
- Artificial square ice and related dipolar nanoarrays
- Ground state lost but degeneracy found: the effective thermodynamics of artificial spin ice
- Realizing Colloidal Artificial Ice on Arrays of Optical Traps
- Energy minimization and AC demagnetization in a nanomagnet array
- Magnets with strong geometric frustration
- Demagnetization Protocols for Frustrated Interacting Nanomagnet Arrays
- Tuning magnetic frustration of nanomagnets in triangular-lattice geometry
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- Degeneracy and criticality from emergent frustration in artificial spin ice
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- New physics in frustrated magnets: Spin ices, monopoles, etc
- Extending spin ice concepts to another geometry: the artificial triangular spin ice
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- Ground-State Candidate for the Dipolar Kagome Ising Antiferromagnet
- Multi-Step Ordering in Kagome and Square Artificial Spin Ice
- Dynamics and hysteresis in square lattice artificial spin-ice
- Crystallizing Kagome artificial spin ice
- Artificial spin ice and vertex models
- Direct visualization of vortex ice in a nanostructured superconductor
- Ignoring your neighbors: Moment correlations dominated by indirect or distant interactions in an ordered nanomagnet array
- Efficient demagnetization protocol for the artificial triangular spin ice
- Magnetic oscillation modes in square lattice artificial spin ice
- Magnetic states and ferromagnetic resonance in geometrically frustrated arrays of multilayer ferromagnetic nanoparticles ordered on triangular lattices
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