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Title: Geometric control of emergent antiferromagnetic order in coupled artificial spin ices

Journal Article · · Cell Reports Physical Science
ORCiD logo [1];  [2];  [2];  [2];  [3];  [1];  [2]; ORCiD logo [2]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Northwestern Univ., Evanston, IL (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Illinois at Urbana-Champaign, IL (United States)

Artificial spin ices (ASIs) composed of coupled nanomagnets offer the possibility to create designer geometrical frustration and manipulate inter-nanomagnet interactions. In particular, by using a dimer motif consisting of two strongly coupled single-domain nano magnets as a building block, we can control and realize intriguing antiferromagnetic physical states in which the magnetic charge is not conserved. Here we create a dimer kagome ASI system within which the antiferromagnetic order is controlled by tuning lattice geometry. Different disordered antiferromagnetic phases and the inter-nanomagnet interactions are visualized directly in demagnetized lattices with different lattice parameters. Monte Carlo simulations establish that the collective ground state consists of disordered antiferromagnetic dimers across the lattice when the intra-dimer interaction is dominant. However, for lattices governed by intra-triad-unit interactions, the ground state exhibits a longrange spin-ordered state in which the vertex magnetic charge is uniform across all triads.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1872951
Journal Information:
Cell Reports Physical Science, Vol. 3, Issue 4; ISSN 2666-3864
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (50)

Interaction modifiers in artificial spin ices journal February 2018
Geometrical frustration journal February 2006
The design and verification of MuMax3 journal October 2014
Realization of Rectangular Artificial Spin Ice and Direct Observation of High Energy Topology journal October 2017
Advances in artificial spin ice journal November 2019
Thermal Phase Transitions in Artificial Spin Ice journal May 2013
Cooperative magnetic phenomena in artificial spin systems: spin liquids, Coulomb phase and fragmentation of magnetism – a colloquium journal March 2019
Tuning magnetic order with geometry: Thermalization and defects in two-dimensional artificial spin ices journal April 2020
Perpendicular Magnetization and Generic Realization of the Ising Model in Artificial Spin Ice journal August 2012
Field-induced phase coexistence in an artificial spin ice journal December 2018
A tunable magnetic metamaterial based on the dipolar four-state Potts model journal October 2018
Thermodynamic phase transitions in a frustrated magnetic metamaterial journal September 2015
Understanding Complex Magnetic Spin Textures with Simulation-Assisted Lorentz Transmission Electron Microscopy journal April 2021
Reconfigurable magnonic mode-hybridisation and spectral control in a bicomponent artificial spin ice journal May 2021
Resonance properties of bi-component arrays of magnetic dots magnetized perpendicular to their planes journal September 2013
Characterization of switching field distributions in Ising-like magnetic arrays journal April 2017
Probing the antiferromagnetic-paramagnetic transition in artificial spin ice by tuning interactions journal May 2020
Properties of a Classical Spin Liquid: The Heisenberg Pyrochlore Antiferromagnet journal March 1998
Magneto-Plasmonics and Resonant Interaction of Light with Dynamic Magnetisation in Metallic and All-Magneto-Dielectric Nanostructures journal April 2015
Proximate Quantum Spin Liquid on Designer Lattice journal February 2021
Topological frustration of artificial spin ice journal January 2017
Geometrical Frustration and Planar Triangular Antiferromagnetism in Quasi-Three-Dimensional Artificial Spin Architecture journal December 2020
Geometric frustration in ordered lattices of plasmonic nanoelements journal March 2019
Nonuniversality of artificial frustrated spin systems journal August 2014
Spin-Wave Dynamics and Symmetry Breaking in an Artificial Spin Ice journal March 2021
Unhappy vertices in artificial spin ice: new degeneracies from vertex frustration journal April 2013
Absence of long-range order in a three-dimensional geometrically frustrated antiferromagnet journal April 1992
Imaging the stochastic microstructure and dynamic development of correlations in perpendicular artificial spin ice journal January 2020
Poling of an artificial magneto-toroidal crystal journal December 2018
Spin liquids in geometrically perfect triangular antiferromagnets journal March 2020
How ‘spin ice’ freezes journal September 2001
Effective Temperature in an Interacting Vertex System: Theory and Experiment on Artificial Spin Ice journal July 2010
Direct observation of magnetic monopole defects in an artificial spin-ice system journal April 2010
Competing interactions in artificial spin chains journal July 2017
Real-space observation of emergent magnetic monopoles and associated Dirac strings in artificial kagome spin ice journal October 2010
Extensive degeneracy, Coulomb phase and magnetic monopoles in artificial square ice journal November 2016
Thermally superactive artificial kagome spin ice structures obtained with the interfacial Dzyaloshinskii-Moriya interaction journal November 2020
Artificial ‘spin ice’ in a geometrically frustrated lattice of nanoscale ferromagnetic islands journal January 2006
Selective and fast plasmon-assisted photo-heating of nanomagnets journal January 2019
Kinetic pathways to the magnetic charge crystal in artificial dipolar spin ice journal December 2014
Magnetic monopoles and toroidal moments in LuFeO 3 and related compounds journal November 2019
In situ transmission electron microscopy for magnetic nanostructures journal September 2016
Realization of ground state in artificial kagome spin ice via topological defect-driven magnetic writing journal November 2017
Spin Ice State in Frustrated Magnetic Pyrochlore Materials journal November 2001
Artificial ferroic systems: novel functionality from structure, interactions and dynamics journal August 2013
Electron-optical phase shift of magnetic nanoparticles I. Basic concepts journal January 2003
Relation between microscopic interactions and macroscopic properties in ferroics journal September 2020
Separation of electrostatic and magnetic phase shifts using a modified transport-of-intensity equation journal April 2014
Magnetic monopoles in spin ice journal January 2008
Bypassing Dynamical Freezing in Artificial Kagome Ice journal July 2020