2014/07/28 by I. A. Chioar, Ioan-Augustin Chioar, N. Rougemaille +11 · 45 citations
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Anisotropy #Condensed matter physics #Demagnetizing field #Dipole #Frustration #Geometrical frustration #Magnetic and transport properties of perovskites and related materials #Magnetic field #Magnetic monopole #Magnetization #Nanomagnet #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Spin (aerodynamics) #Spin ice #Statistical physics #Universality (dynamical systems) #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.90.064411
published in Physical Review B 90(6) (American Physical Society) · 7 pages, 6 figures
arxiv created 2014/07/28 · openalex publication_date 2014/08/11 · arxiv updated 2015/06/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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-neighbor) 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.