Magnetic-Field Control of Emergent Order in a 3D Dipolar Pyramid Artificial Spin Ice

2025/09/01 by Luca Berchialla, Berchialla, Luca, Gavin M. Macauley +7 · 1 citation
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Iron-based superconductors research #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Physics of Superconductivity and Magnetism

paper · pdf · doi:10.48550/arxiv.2509.01534

openalex publication_date 2025/09/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We realize a three-dimensional artificial spin ice of disconnected nanomagnets interacting solely via dipolar coupling, patterned on square pyramids. This Pyramid artificial spin ice, with both tilted and in-plane nanomagnets, supports tunable states. Monte Carlo simulations reveal a rich phase diagram and an emergent square ice of vertex-level effective spins. Tailored demagnetization protocols and magnetic force microscopy allow experimental access to low-energy states, establishing a platform for exploring three-dimensional artificial spin ices.

Citations

• Direct visualization of domain wall pinning in sub-100nm 3D magnetic nanowires with cross-sectional curvature
• Realisation of a Frustrated 3D Magnetic Nanowire Lattice

Cited by

• Chirality Imprinting and Spin-texture Tunability in Conformally Coated 3D Magnetic Nanostructured Metamaterials

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