%0 Journal Article
%A Périgo, E. A.
%A Mettus, D.
%A Gilbert, E. P.
%A Hautle, P.
%A Niketic, N.
%A van den Brandt, B.
%A Kohlbrecher, J.
%A McGuiness, P.
%A Fu, Z.
%A Michels, A.
%T Magnetic microstructure of a textured Nd-Fe-B sintered magnet characterized by small-angle neutron scattering
%J Journal of alloys and compounds
%V 661
%@ 0925-8388
%C Lausanne
%I Elsevier
%M FZJ-2015-07230
%P 110-114
%D 2016
%Z Art. No S0925838815317230
%X We report the results of a small-angle neutron scattering (SANS) study on the magnetic microstructure of a textured Nd–Fe–B-based sintered permanent magnet. By combining unpolarized and polarized SANS (SANSPOL), we demonstrate that a number of important conclusions regarding the microscopic spin structure can be made. Specifically, the applied-field dependence of the unpolarized neutron data is in agreement with the existence of long-range spin-misalignment fluctuations, i.e., deviations of the magnetization from the mean direction on a real-space length-scale up to the micron range. In addition, measurements with polarized neutrons provide evidence for the presence of coupled nanometer-scale fluctuations in the nuclear and longitudinal magnetic scattering-length density.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000367521200017
%R 10.1016/j.jallcom.2015.11.167
%U https://juser.fz-juelich.de/record/279153