llg3d.post.domain_wall

Analyse domain wall profiles.

Functions

fit_data_to_tanh(x, data)

Fit the data to a hyperbolic tangent function.

fit_m1_to_tanh(result[, time_index])

Fit the magnetization profile to a hyperbolic tangent function.
fit_data_to_tanh(x, data)[source]

Fit the data to a hyperbolic tangent function.

Parameters:

  • x (ndarray) – x coordinates

  • data (ndarray) – magnetization profile data

Returns:

  • m_0: saturation magnetization

  • x_0: center of the domain wall

  • w: width of the domain wall

Return type:

A tuple (m_0, x_0, w) containing the fitted parameters

fit_m1_to_tanh(result, time_index=-1)[source]

Fit the magnetization profile to a hyperbolic tangent function.

The function is defined as:

\[m(x) = m_0 * \tanh\left(\frac{x - x_0}{w}\right)\]

where:

  • m_0 is the saturation magnetization,

  • x_0 is the center of the domain wall,

  • w is the width of the domain wall.

Parameters:

  • result (RunResults) – RunResults object containing the magnetization profile.

  • time_index (int) – Index of the time step to fit (default is the last time step). etc.). Default is -1 (last time step).

Returns:

A tuple (m_0, x_0, w) containing the fitted parameters.

Return type:

tuple[float64, …]