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Redfield¶
Description¶
The Redfield formula for the LF dependence on the muon spin relaxation rate.
\[\Lambda(t)= A_0\frac{2\gamma^2_\mu H^2_\text{loc}\tau}{1+\gamma^2_\mu H^2_\text{LF} \tau^2}\]
where,
\(A_0\) is the amplitude of asymmetry,
\(H_\text{loc}\) is the local magnetic field,
\(H_\text{LF}\) is the longitudinal magnetic field applied,
and its expression is given as \(\tau = \frac{1}{f}\) where \(f\) is the frequency of fluctuation at muon sites.
(Source code, png, hires.png, pdf)
Properties (fitting parameters)¶
Name |
Default |
Description |
|---|---|---|
A0 |
1.0 |
|
Hloc |
0.1 |
Local magnetic field (G) |
Tau |
0.1 |
Correlation time of muon spins (microsec) |
References¶
[1] Takao Suzuki et al, J. Phys.: Conf. Ser. 502 012041 (2014).
Categories: FitFunctions | Muon\MuonModelling
Source¶
Python: Redfield.py