fermi_dirac

sisl.physics.fermi_dirac(E, kT=0.1, mu=0.0)

Fermi-Dirac distribution function

$$n_F(E,k_{B}T,\mu )=\frac{1}{\exp [\frac{E-\mu }{k_{B}T}]+1}$$

Parameters:

• E (ArrayLike) – energy evaluation points

• kT (float) – temperature broadening

• mu (float | ArrayLike) – chemical potential

Returns:

the Fermi-Dirac distribution, same length as E

Return type:

numpy.ndarray