Brillouin light scattering study of magnetic-element normal modes in a square artificial spin ice geometry

Article English OPEN
Li, Yue ; Gubbiotti, Gianluca ; Casoli, Francesca ; Goncalves, Francisco ; Morley, Sophie ; Rosamond, Mark ; Linfield, Edmund ; Marrows, Christopher ; McVitie, Stephen ; Stamps, Robert (2017)
  • Publisher: IOP Publishing

We report the results, from experimental and micromagnetic studies, of the magnetic normal modes in artificial square spin ice systems consisting of ferromagnetic-monodomain islands. Spin-wave properties are measured by Brillouin light scattering. The mode spectra contain several branches whose frequencies are sensitive to the magnitude and in-plane orientation of an applied magnetic field. We also identify soft modes that exhibit different behaviours depending on the direction of the applied magnetic field. The obtained results are well described with micromagnetic simulations of independent magnetic elements arranged along two sublattices.
  • References (34)
    34 references, page 1 of 4

    [1] Heyderman L J and Stamps R L 2013 J. Phys.: Condens. Matter 25 363201

    [2] Wang R F et al 2006 Nature 439 303

    [3] Kapaklis V et al 2012 New J. Phys. 14 035009

    [4] Mengotti E, Heyderman L J, Rodríguez A F, Nolting F, Hügli R V and Braun H-B 2011 Nat. Phys. 7 68

    [5] Bhat V S, Sklenar J, Farmer B, Woods J, Hastings J T, Lee S J, Ketterson J B and De Long L E 2013 Phys. Rev. Lett. 111 077201

    [6] Chern G-W, Morrison M J and Nisoli C 2013 Phys. Rev. Lett. 111 177201

    [7] Gilbert I, Chern G-W, Zhang S, O'Brien L, Fore B, Nisoli C and Schiffer P 2014 Nat. Phys. 10 670

    [8] Zhou X, Chua G-L, Singh N and Adeyeye A O 2016 Adv. Funct. Mater. 26 1437

    [9] Ribeiro I R B, Felix J F, Figueiredo L C, Morais P C, Ferreira S O, Moura-Melo W A, Pereira A R, Quindeau A and de Araujo C I L 2016 J. Phys.: Condens. Matter 28 456002

    [10] Jungfleisch M B et al 2016 Phys. Rev. B 93 100401

  • Metrics
    No metrics available
Share - Bookmark