$$

PCRmagnetfnorm

Description

ZF signal from PCR ordered magnet with normalised relaxation rate

$$A(t)=A_0(\frac{1}{3}+\frac{2}{3}{e}^{-({\sigma }_{\omega }\omega t^{\prime }{)}^2/2}\cos (\omega t))$$

where,

$\omega =g_{\mu }{H}_0$ ,

$t^{\prime }=t-t_{\text{off}}$ ,

$A_0$ is the amplitude,

${\sigma }_{\omega }$ (MHz) is the normalised relaxation rate,

H0 (G) is the local magnetic field,

$g_{\mu }$ is the gyromagnetic ratio of muons,

and $t_{\text{off}}$ (microsecs) is the time offset.

Enable :plots: using DOCS_PLOTDIRECTIVE in CMake

Properties (fitting parameters)

Name	Default	Description
A0	0.2	Amplitude
SigmaOverW	0.1	Normalised relaxation rate
H0	3.0	Local magnetic field
Toff	0.1	Time offset

References

[1] F.L. Pratt, Physica B 289-290, 710 (2000).

Categories: FitFunctions | Muon\MuonSpecific

Source

Python: PCRmagnetfnorm.py