Non-universality of artificial frustrated spin systems

Abstract

Magnetic frustration effects in artificial kagome arrays of nanomagnets with out-of-plane magnetization are investigated using Magnetic Force Microscopy and Monte Carlo simulations. Experimental and theoretical results are compared to those found for the artificial kagome spin ice, in which the nanomagnets have in-plane magnetization. In contrast with what has been recently reported, we demonstrate that long range (i.e. beyond nearest-neighbors) dipolar interactions between the nanomagnets cannot be neglected when describing the magnetic configurations observed after demagnetizing the arrays using a field protocol. As a consequence, there are clear limits to any universality in the behavior of these two artificial frustrated spin systems. We provide arguments to explain why these two systems show striking similarities at first sight in the development of pairwise spin correlations.

arXiv comment7 pages, 6 figures

References in corpus (14)

• Artificial "spin ice" in a geometrically frustrated lattice of nanoscale ferromagnetic islands
• Direct observation of the ice rule in artificial kagome spin ice
• Geometric Frustration in Buckled Colloidal Monolayers
• Magnetic multipole analysis of kagome and artificial ice dipolar arrays
• Artificial Kagome Arrays of Nanomagnets: A Frozen Dipolar Spin Ice
• Energy minimization and AC demagnetization in a nanomagnet array
• Realizing Colloidal Artificial Ice on Arrays of Optical Traps
• Melting artificial spin ice
• Disorder strength and field-driven ground state domain formation in artificial spin ice: experiment, simulation and theory
• Demagnetization Protocols for Frustrated Interacting Nanomagnet Arrays
• Perpendicular Magnetization and Generic Realization of the Ising Model in Artificial Spin Ice
• Domain dynamics and fluctuations in artificial square ice at finite temperatures
• Diversity enabling equilibration: disorder and the ground state in artificial spin ice
• Chiral nature of magnetic monopoles in artificial spin ice

Cited by in corpus (21)

• Extensive degeneracy, Coulomb phase and magnetic monopoles in an artificial realization of the square ice model
• Fragmentation of magnetism in artificial kagome dipolar spin ice
• Ice Rule and Emergent Frustration in Particle Ice and Beyond
• FePd${}_3$ as a material for thermally active artificial spin ice
• Kinetic pathways to the magnetic charge crystal in artificial dipolar spin ice
• Ground-State Candidate for the Dipolar Kagome Ising Antiferromagnet
• Competing interactions in artificial spin chains
• Partial lifting of degeneracy in the $J_1-J_2-J_3$ Ising antiferromagnet on the kagome lattice
• Proposal to recover an extensive ground state degeneracy in a two-dimensional square array of nanomagnets
• Artificial out-of-plane Ising antiferromagnet on the kagome lattice with very small further neighbour couplings
• Reentrance of disorder in the anisotropic shuriken Ising model
• Supercooling and fragile glassiness in a dipolar kagome Ising magnet
• Magnetocaloric properties of frustrated tetrahedra-based spin nanoclusters
• Field-tunable interactions and frustration in underlayer-mediated artificial spin ice
• Characterization of switching field distributions in Ising-like magnetic arrays
• Signatures of long range dipolar interactions in artificial square ice
• Imaging the stochastic microstructure and dynamic development of correlations in perpendicular artificial spin ice
• Tuning the two-step melting of magnetic orders in a dipolar kagome spin ice by quantum fluctuations
• Mean-field phase diagram and spin glass phase of the dipolar Kagome Ising antiferromagnet
• Artificial vertex systems by design
• The design, verification, and applications of Hotspice: a Monte Carlo simulator for artificial spin ice