get_fermi_length(symb)

Returns the Fermi length (10^-12 cm) of a chemical element. If an error ocurred, it returns 0.

Parameters:

symb (str) – atomic symbol

Returns:

Fermi length

Return type:

float

>>> from pycrysfml import cfml_scattering_tables
>>> cfml_scattering_tables.get_fermi_length('Fe')
0.9449999928474426