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StretchedKT¶
Description¶
For observation of muon spin relaxation MuSR spectra with lineshapes lying between a Guassian and a Lorentzian,
\[A(t)=A_0\left(\frac{1}{3}+\frac{2}{3}\left(1-(\sigma t)^\beta\right)e^{-\frac{(\sigma t)^\beta}{\beta}}\right)\]
where,
\(\sigma\) is KuboToyabe decay rate,
\(A_0\) is the amplitude,
\(\beta\) is the stretching exponential and it ranges from 1 (neglible nuclear field) and 2 (strong nuclear field).
Properties (fitting parameters)¶
Name |
Default |
Description |
---|---|---|
A0 |
1.0 |
|
Beta |
1.0 |
|
Sigma |
0.1 |
References¶
[1] Crook et al, J. Phys.: Condens. Matter 9 1149-1158 (1997).
[2] Lord J.S., J. Phys.: Conf. Ser. 17 81 (2005).
Categories: FitFunctions | Muon\MuonGeneric
Source¶
Python: StretchedKT.py