AFMZF

Description

ZF oscillation for aligned Anti-ferromagnetic magnetic sample with Gaussian dephasing

A(t)  = \frac{A_0}{2}((1-a_1)+a_1\cos(\omega_1t+\phi))+(1-a_2)+a_2\cos(\omega_2t+\phi))

where,

a_1 =\sin^2\theta ,

\omega = 2\pi\nu ,

\nu is the ZF frequency (MHz),

\sigma is the Gaussian relaxation for oscillatory component,

\theta is the angle of internal field w.r.t. to applied field,

and \phi is the phase.

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

../../_images/AFMZF-1.png

Properties (fitting parameters)

Name Default Description
A0 0.2 Amplitude
Freq 1.0 ZF Frequency (MHz)
Angle 50.0 Angle of internal field w.r.t. to applied field (degrees)
Sigma 0.2 Gaussian relaxation for oscillatory component
Phi 0.0 Phase (rad)

Source

Python: AFMZF.py (last modified: 2020-03-20)