PCRmagRedfield¶

Description¶

ZF signal from PCR ordered magnet with Redfield Fluctuations.

$A(t)= \begin{cases} A_0\left(\frac13+\frac23e^{-\frac{\Delta^4}{q}t}\cos{\omega t}\right), & q\geq 0 \\ A_0\left(\frac13+\frac23\cos{\omega t}\right), & \text{otherwise} \end{cases}$

where,

$q=\nu(\nu^2+\Delta^2)$ ,

$\omega = 2\pi\Delta$ ,

$A_0$ is the amplitude,

$\lambda$ (MHz) is the relaxation rate,

and $\Delta$ is the precession frequency.

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

Properties (fitting parameters)¶

Name	Default	Description
A0	0.2	Amplitude
Delta	0.2
Nu	0.2

References¶

[1] F.L. Pratt, Physica B 289-290, 710 (2000).

Categories: FitFunctions | MuonSpecific

Source¶

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