AFMZF.rst

AFMZF

.. index:: 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.

.. plot::

   from mantid.simpleapi import FunctionWrapper
   import matplotlib.pyplot as plt
   import numpy as np
   x = np.arange(0.1,16,0.1)
   y = FunctionWrapper("AFMZF")
   fig, ax=plt.subplots()
   ax.plot(x, y(x))
   ax.set_xlabel('t($\mu$s)')
   ax.set_ylabel('A(t)')

.. attributes::

.. properties::

References

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

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