DecoupAsymPowderMagRot

Description

The Decoupling of asymmetry in the ordered state of a powdered magnet fit function for rotational asymmetry can be written as:

\[y = a*(1-A_z({\frac{x}{B0}}))\]

where:

• \(a\) - a scaling parameter for the overall asymmetry

• \(B0\) - the characteristic field

• \(A_z(b) = {\frac{3}{4}} - {\frac{1}{4b^2}} + {\frac{(b^2-1)^2}{8b^3}}log|{{\frac{b+1}{b-1}}}|\)

For a longitudinal polarization use DecoupAsymPowderMagLong .

Examples

An example of when this might be used is for examining field dependence of \(\mu\) SR signals in a polycrystalline magnet [1].

Properties (fitting parameters)

Name	Default	Description
Asymmetry	1.0	a scaling parameter for the overall asymmetry
CharField	1.0	the characteristic field

References

[1]

Pratt, F.L. (2007). Field dependence of \(\mu\) SR signals in a polycrystalline magnet. Journal of Physics:Condensed Matter, Vol. 19 No. 45, doi:10.1088/0953-8984/19/45/456207 .

Categories: FitFunctions | Muon\MuonModelling\Magnetism

Source

C++ header: DecoupAsymPowderMagRot.h

C++ source: DecoupAsymPowderMagRot.cpp