SpinGlass

Description

Fitting function for use by Muon scientists defined by:

A(t) = A_0\left(\frac{1}{3}e^{-\sqrt{\Omega t}}+\frac{2}{3}\left(1-\frac{Qa^2t^2}{\sqrt{\Omega t+Qa^2t^2}}\right)e^{-\sqrt{\Omega t + Qa^2t^2}}\right)

\Omega = \frac{4(1-Q)a^2}{\nu}

where,

A_0 is the amplitude,

Q is the order parameter,

\nu is the rate of Markovian modulation,

and a is the half-width half maximum of the local field Lorentzian Distribution.

Note that 0<q<1 and \gamma>0

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

../../_images/SpinGlass-1.png

Properties (fitting parameters)

Name Default Description
A0 0.2 Asymmetry
Width 0.1 Half-width half maximum of the local field Lorentzian Distribution
Nu 1.0 Rate of Markovian modulation
Q 0.1 Order Parameter

Source

Python: SpinGlass.py (last modified: 2019-11-14)