GauBroadGauKT

Description

Gaussian-Broadened Gaussian Kubo-Toyabe relaxation function given by:

A(t)=A0(13+23(1+R21+R2+R2Δeff2t2)32(1Δeff2t21+R2+R2Δeff2t2)exp(Δeff2t22(1+R2+R2Δeff2t2)))

where R and Δeff2 are defined by,

R=ωΔ0,
Δeff2=Δ02+ω2,

where,

A0 is the amplitude,

R the Broadening ratio,

Δ0 is the central width,

ω is the rms width,

and Δeff is the effective width.

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

../../_images/GauBroadGauKT-1.png

Properties (fitting parameters)

Name

Default

Description

A0

0.2

R

0.1

Broadening ratio

Delta0

0.1

Central Field width

References

[1] D.R. Noakes et al, PRB 56 2352 (1997).

[2] D.E. Maclaughlin et al, PRB 89 144419 (2014).

Categories: FitFunctions | Muon\MuonSpecific

Source

Python: GauBroadGauKT.py