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Polarized neutron scattering from ordered magnetic domains on a mesoscopic permalloy antidot array

2003; American Institute of Physics; Volume: 82; Issue: 1 Linguagem: Inglês

10.1063/1.1534919

1520-8842

Dong Ryeol Lee, G. Srajer, M. R. Fitzsimmons, V. Metlushko, S. K. Sinha,

Acoustic Wave Resonator Technologies

Using polarized neutrons, we measured grazing-incidence scattering from a mesoscopic permalloy antidot array. A kinematical theory incorporating a highly anisotropic resolution function was developed to interpret the data. Calculations for a magnetic domain structure of the antidot array were obtained from a micromagnetic simulation and show good agreement with the experiment. In contrast, calculations based on a model of uniform magnetization between the antidots were not found to be consistent with the data.