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PCRmagnetZFKT¶

Description¶

ZF signal from PCR ordered magnet with Kubo Toyabe field contribution

$\begin{split}A(t)=A_0 \left(\frac13+\frac23e^{-(\Delta t')^2/2}\left(\cos(\Delta t)-\frac{\Delta^2}{\omega} t\sin(\omega t)\right)\right)\\\end{split}$

where,

$\omega=g_\mu H_0$ ,

$t'=t-t_\text{off}$ ,

$A_0$ is the amplitude,

$\Delta$ (MHz) is the 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.

(Source code, png, hires.png, pdf)

Properties (fitting parameters)¶

Name	Default	Description
A0	0.2
Delta	0.1
H0	10.0
Toff	0.1

References¶

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

Categories: FitFunctions | Muon\MuonSpecific

Source¶

Python: PCRmagnetZFKT.py (last modified: 2020-03-20)