Exchange-stiffness constant of a Nd-Fe-B based nanocomposite determined by magnetic neutron scattering

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Date
2013-09-16
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American Institute of Physics
Abstract
We report magnetic-field-dependent small-angle neutron scattering (SANS) experiments on a Nd2Fe14B/Fe3B nanocomposite. For the two scattering geometries where the applied magnetic field is either perpendicular or parallel to the incoming neutron beam, we have independently analyzed the field-dependent SANS data in terms of micromagnetic theory, taking into account demagnetizing-field effects. The approach in reciprocal space is supported by an analysis of the data in real space and provides consistent results for the exchange-stiffness parameter and the mean magnetic anisotropy-field radius. © 2013, American Institute of Physics.
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Keywords
Boron alloys, Demagnetization, Neutrons, Iron alloys, Neutron diffraction, Magnetic properties
Citation
Bick, J.P., Suzuki, K., Gilbert, E. P., Forgan, E. M., Schweins, R., Lindner, P., Kubel, C., & Michels, A. (2013). Exchange-stiffness constant of a Nd-Fe-B based nanocomposite determined by magnetic neutron scattering. Applied Physics Letters, 103(12), 122402. doi:10.1063/1.4821453
URI
http://dx.doi.org/10.1063/1.4821453
 http://apo.ansto.gov.au/dspace/handle/10238/5658
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