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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.

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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)

References

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

Categories: FitFunctions | Muon\MuonSpecific

Source

Python: AFMZF.py