ElectronBandsPlotterΒΆ

This example shows how to plot several band structures on a grid

We use two GSR files:

si_scf_GSR.n: energies on a homogeneous sampling of the BZ (can be used to compute DOS) si_nscf_GSR.nc: energies on a k-path in the BZ (used to plot the band dispersion)

  • ../_images/sphx_glr_plot_ebands_grid_001.png
  • ../_images/sphx_glr_plot_ebands_grid_002.png

Out:

/Users/gmatteo/git_repos/pymatgen/pymatgen/symmetry/bandstructure.py:63: UserWarning: The input structure does not match the expected standard primitive! The path can be incorrect. Use at your own risk.
  warnings.warn("The input structure does not match the expected standard primitive! "
             nsppol  nspinor  ...                      dirgap_kstart                        dirgap_kend
BZ sampling       1        1  ...           [+0.000, +0.000, +0.000]           [+0.000, +0.000, +0.000]
k-path            1        1  ...  [+0.000, +0.000, +0.000] $\Gamma$  [+0.000, +0.000, +0.000] $\Gamma$

[2 rows x 31 columns]
/Users/gmatteo/git_repos/pymatgen/pymatgen/symmetry/bandstructure.py:63: UserWarning: The input structure does not match the expected standard primitive! The path can be incorrect. Use at your own risk.
  warnings.warn("The input structure does not match the expected standard primitive! "
/Users/gmatteo/git_repos/pymatgen/pymatgen/symmetry/bandstructure.py:63: UserWarning: The input structure does not match the expected standard primitive! The path can be incorrect. Use at your own risk.
  warnings.warn("The input structure does not match the expected standard primitive! "
/Users/gmatteo/git_repos/pymatgen/pymatgen/util/plotting.py:550: UserWarning: Matplotlib is currently using agg, which is a non-GUI backend, so cannot show the figure.
  plt.show()
/Users/gmatteo/git_repos/pymatgen/pymatgen/symmetry/bandstructure.py:63: UserWarning: The input structure does not match the expected standard primitive! The path can be incorrect. Use at your own risk.
  warnings.warn("The input structure does not match the expected standard primitive! "
/Users/gmatteo/git_repos/pymatgen/pymatgen/symmetry/bandstructure.py:63: UserWarning: The input structure does not match the expected standard primitive! The path can be incorrect. Use at your own risk.
  warnings.warn("The input structure does not match the expected standard primitive! "
/Users/gmatteo/git_repos/pymatgen/pymatgen/util/plotting.py:550: UserWarning: Matplotlib is currently using agg, which is a non-GUI backend, so cannot show the figure.
  plt.show()

from abipy.abilab import ElectronBandsPlotter
from abipy.data import ref_file

# To plot a grid with two band structures:
plotter = ElectronBandsPlotter()
plotter.add_ebands("BZ sampling", ref_file("si_scf_GSR.nc"))
plotter.add_ebands("k-path", ref_file("si_nscf_GSR.nc"))

# Get pandas dataframe
frame = plotter.get_ebands_frame()
print(frame)

plotter.gridplot(with_gaps=True)
#plotter.animate()

# To plot a grid with band structures + DOS, use the optional argument `edos_objects`
# The first subplot gets the band dispersion from eb_objects[0] and the DOS from edos_objects[0]
# edos_kwargs is an optional dictionary passed to `get_dos` to compute the DOS.
eb_objects = 2 * [ref_file("si_nscf_GSR.nc")]
edos_objects = 2 * [ref_file("si_scf_GSR.nc")]

# sphinx_gallery_thumbnail_number = 2
plotter = ElectronBandsPlotter()
plotter.add_ebands("Si", ref_file("si_nscf_GSR.nc"), edos=ref_file("si_scf_GSR.nc"))
plotter.add_ebands("Same data", ref_file("si_nscf_GSR.nc"), edos=ref_file("si_scf_GSR.nc"))
plotter.gridplot()

Total running time of the script: ( 0 minutes 2.544 seconds)

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