6.3

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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)

../../_images/Redfield-1.png

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)

Source

Python: Redfield.py