sys : kwant.system.InfiniteSystem
A system bands of which are to be plotted.
args : tuple, defaults to empty
Positional arguments to pass to the hamiltonian method.
Mutally exclusive with ‘params’.
momenta : int or 1D array-like
Either a number of sampling points on the interval [-pi, pi], or an
array of points at which the band structure has to be evaluated.
file : string or file object or None
The output file. If None, output will be shown instead.
show : bool
Whether matplotlib.pyplot.show() is to be called, and the output is
to be shown immediately. Defaults to True.
dpi : float
Number of pixels per inch. If not set the matplotlib default is
used.
fig_size : tuple
Figure size (width, height) in inches. If not set, the default
matplotlib value is used.
ax : matplotlib.axes.Axes instance or None
If ax is not None, no new figure is created, but the plot is done
within the existing Axes ax. in this case, file, show, dpi
and fig_size are ignored.
params : dict, optional
Dictionary of parameter names and their values. Mutually exclusive
with ‘args’.
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