skip to main content
Idioma:

Thickness dependence of spin wave excitations in an artificial square spin ice-like geometry

Li, Y. ; Gubbiotti, G. ; Casoli, F. ; Morley, S. A. ; Gonçalves, F. J. T. ; Rosamond, M. C. ; Linfield, E. H. ; Marrows, C. H. ; McVitie, S. ; Stamps, R. L.

Journal of applied physics, 2017-03, Vol.121 (10) [Periódico revisado por pares]

Melville: American Institute of Physics

Texto completo disponível

Citações Citado por
  • Título:
    Thickness dependence of spin wave excitations in an artificial square spin ice-like geometry
  • Autor: Li, Y. ; Gubbiotti, G. ; Casoli, F. ; Morley, S. A. ; Gonçalves, F. J. T. ; Rosamond, M. C. ; Linfield, E. H. ; Marrows, C. H. ; McVitie, S. ; Stamps, R. L.
  • Assuntos: Comparative studies ; Dependence ; Islands ; Light scattering ; Magnetic fields ; Magnetic films ; Magnetic properties ; Magnetization reversal ; Magnons ; Spin ice
  • É parte de: Journal of applied physics, 2017-03, Vol.121 (10)
  • Descrição: We present a comparative study of the spin wave properties in two magnetic films patterned into an artificial square spin ice-like geometry. The array elements are rectangular islands with the same lateral dimensions but with different thicknesses: 10 nm and 30 nm. Using Brillouin light scattering, the frequencies of spin wave excitations were measured as a function of the magnetic field going from positive to negative saturation. We find substantial changes with thickness to spin wave mode frequencies and the number of detected modes. Frequencies of spin waves localized at element edges are observed to evolve non-monotonically with magnetic fields and soften at critical fields. These critical fields enable us to extract information of the magnetization reversal of individual islands within the array. Finally, we discuss the effects of separation between islands and examine the possibilities for dynamic coupling through the overlap of collective edge modes.
  • Editor: Melville: American Institute of Physics
  • Idioma: Inglês
Voltar para lista de resultados
Ir para página anteriorAnterior Resultado  10 AvançarIr para próxima página

  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

Buscando em bases de dados remotas. Favor aguardar.