Title :
Magnetic correlations in alumite studied by neutron depolarisation
Author :
Kraan, W.H. ; Rekveldt, M.T.
Author_Institution :
Interfac. Reactor Inst., Delft Univ. of Technol., Netherlands
fDate :
1/1/1990 12:00:00 AM
Abstract :
A polarized neutron beam (λ=0.36 nm) was transmitted both perpendicularly and at skew angles through alumite films of various geometries. Three-dimensional depolarization analysis was performed. A model containing the geometry of the needles in the alumite and a parameter K for the excess correlation between their magnetic moments over the reduced magnetization is applied to describe the data. It appears that K becomes more negative as the magnetic interaction between the needles increases
Keywords :
ferromagnetic properties of substances; iron compounds; magnetic moments; magnetic thin films; neutron diffraction examination of materials; remanence; 3D depolarization analysis; alumite; magnetic films; magnetic interaction; magnetic moment correlation; needle geometry; neutron depolarisation; polarized neutron beam; skew angles; Geometry; Magnetic analysis; Magnetic films; Magnetic moments; Needles; Neutrons; Particle beams; Performance analysis; Polarization; Solid modeling;
Journal_Title :
Magnetics, IEEE Transactions on
