FmuF

Description

A fitting function for muon-fluorine bonds in ionic crystals.

A(t)=A0e(σt)22eλtG(t)

where,

λ is the exponential decay rate,

σ is the Gaussian decay rate,

ωD (rad/s) is the dipolar interaction angular frequency,

and the expression for G(t) and ωD are given by

G(t)=16[3+cos(3ωDt)+(113)cos(332ωDt)+(1+13)cos(3+32ωDt)]

and

ωD=2πν

where ν (MHz) is the dipolar interaction frequency.

../../_images/FmuF.png

Properties (fitting parameters)

Name

Default

Description

A0

0.5

Amplitude

FreqD

0.2

Dipolar interaction frequency (MHz)

Lambda

0.1

Exponential decay rate

Sigma

0.2

Gaussian decay rate

References

[1] J.H.Brewer et al., PRB 33 11 (1986).

Categories: FitFunctions | Muon\MuonSpecific

Source

Python: FmuF.py