Reference : Neutron scattering and modeling of dipole-field-induced spin disorder in Nanoperm
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/10993/599
Neutron scattering and modeling of dipole-field-induced spin disorder in Nanoperm
English
Vecchini, C. [CNR-INFM S3 National Research Center, Physics Department, University of Modena and Reggio Emilia, Italy]
Moze, O. [CNR-INFM S3 National Research Center, Physics Department, University of Modena and Reggio Emilia, Italy]
Suzuki, K. [Department of Materials Engineering, Monash University, Australia]
Pranzas, P. K. [GKSS Research Center, Germany]
Weissmüller, J. [Institut für Nanotechnologie, Forschungszentrum Karlsruhe, Germany]
Michels, Andreas mailto [Paul Scherrer Institute, Switzerland]
2005
Applied Physics Letters
American Institute of Physics
87
2025091-2025093
Yes (verified by ORBilu)
0003-6951
Melville
NY
[en] 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.
http://hdl.handle.net/10993/599
10.1063/1.2132540

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