Magnetic correlations of fine ferromagnetic particles studied by small-angle neutron scattering

1996 ◽  
Vol 53 (9) ◽  
pp. 5570-5578 ◽  
Author(s):  
C. Bellouard ◽  
I. Mirebeau ◽  
M. Hennion
Soft Matter ◽  
2019 ◽  
Vol 15 (27) ◽  
pp. 5412-5420 ◽  
Author(s):  
Alenka Mertelj ◽  
Borut Lampret ◽  
Darja Lisjak ◽  
Jürgen Klepp ◽  
Joachim Kohlbrecher ◽  
...  

Small angle neutron scattering reveals positional and magnetic correlations in ferromagnetic ferrofluids.


AIP Advances ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 015036
Author(s):  
A. Schroeder ◽  
S. Bhattarai ◽  
A Gebretsadik ◽  
H. Adawi ◽  
J.-G. Lussier ◽  
...  

1991 ◽  
Vol 6 (11) ◽  
pp. 2305-2311 ◽  
Author(s):  
W. Wagner ◽  
A. Wiedenmann ◽  
W. Petry ◽  
A. Geibel ◽  
H. Gleiter

Small angle neutron scattering (SANS) was applied to achieve insight into the magnetic correlations in nanostructured Fe. The results confirm the expected microstructure involving ferromagnetic grains and a nonmagnetic or weakly magnetic interface region, the interfaces occupying about half the specimen volume. The SANS measurements further reveal that in nanostructured Fe the magnetic correlations are not confined to single grains, but are extended across the interfaces and result in the alignment of the magnetization over several hundreds of grains. An external field of 1.5 kOe is not sufficient for complete magnetic alignment of the entire specimen. However, the long-range magnetic correlations are considerably disturbed by this field. Reducing the external magnetic field to zero causes the magnetic correlations to resume microstructural characteristics similar to what they had in the original state.


1989 ◽  
Vol 156-157 ◽  
pp. 210-212 ◽  
Author(s):  
A.C. Hannon ◽  
R. Cywinski ◽  
R.N. Sinclair ◽  
D.I. Grimley ◽  
A.C. Wright

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