Neutron scattering and modeling of dipole-field-induced spin disorder in Nanoperm

Veccini, C.; Moze, O.; Suzuki, K.; Pranzas, P.K.; Weissmueller, J.; Michels, A.

Journalpaper

Neutron scattering and modeling of dipole-field-induced spin disorder in Nanoperm

Abstract

We present magnetic-field-dependent small-angle neutron scattering data for the ferromagnetic nanocomposite Nanoperm (Fe89Zr7B3Cu1). The spin-misalignment scattering in the approach-to-saturation regime unexpectedly reveals pronounced lobes of high intensity at angles ±30–40° relative to the magnetic-field axis. Based on numerical calculations, the four-fold angular symmetry of the scattering pattern can be explained in terms of local spin misalignment, which originates from dipolar stray fields due to the mismatch of the saturation-magnetization values between the bcc Fe particles and the amorphous magnetic matrix.

DOI Link to Publication

URL: https://publications.hereon.de/id/23836/
Authors:Veccini, C., Moze, O., Suzuki, K., Pranzas, P.K., Weissmueller, J., Michels, A.
Year:2005
In: Applied Physics Letters
Volume:87
Pages:202509
Type:Journalpaper
ISSN: 0003-6951
Cite as: Veccini, C.; Moze, O.; Suzuki, K.; Pranzas, P.K.; Weissmueller, J.; Michels, A.: Neutron scattering and modeling of dipole-field-induced spin disorder in Nanoperm. In: Applied Physics Letters. Vol. 87 (2005) 202509. (DOI: 10.1063/1.2132540 )