Plotting fermi3d spin_texture

Symmetry does not currently work! Make sure for fermi surface calculations turn off symmetry

Plotting fermi3d spin_texture example.

First download the example files with the code below. Then replace data_dir below.

Downloading example

 data_dir = pyprocar.download_example(save_dir='',
                             material='Fe',
                             code='vasp',
                             spin_calc_type='non-colinear',
                             calc_type='fermi')

# sphinx_gallery_thumbnail_number = 1

import pyvista
# You do not need this. This is to ensure an image is rendered off screen when generating exmaple gallery.
pyvista.OFF_SCREEN = True

importing pyprocar and specifying local data_dir

import os
import pyprocar

data_dir = f"{pyprocar.utils.ROOT}{os.sep}data{os.sep}examples{os.sep}Fe{os.sep}vasp{os.sep}non-colinear{os.sep}fermi"


# First create the FermiHandler object, this loads the data into memory. Then you can call class methods to plot
# Symmetry only works for specfic space groups currently.
# For the actual calculations turn off symmetry and set 'apply_symmetry'=False
fermiHandler = pyprocar.FermiHandler(
                                    code="vasp",
                                    dirname=data_dir,
                                    apply_symmetry=True)

WARNING : Fermi Energy not set! Set `fermi={value}`. By default, using fermi energy found in given directory.
---------------------------------------------------------------------------------------------------------------

Spin Texture mode

fermiHandler.plot_fermi_surface(mode="spin_texture",
                              spin_texture=True,
                              arrow_size=0.1,
                              show=True,)

                --------------------------------------------------------
                There are additional plot options that are defined in a configuration file.
                You can change these configurations by passing the keyword argument to the function
                To print a list of plot options set print_plot_opts=True

                Here is a list modes : plain , parametric , spin_texture , overlay
                Here is a list of properties: fermi_speed , fermi_velocity , harmonic_effective_mass
                --------------------------------------------------------

Bands Near Fermi :  [4, 5, 6, 7, 8, 9]