DOS
- sisl.physics.electron.DOS(E, eig, distribution='gaussian')[source]
Calculate the density of states (DOS) for a set of energies, E, with a distribution function
The \(\mathrm{DOS}(E)\) is calculated as:
\[\mathrm{DOS}(E) = \sum_i D(E-\epsilon_i) \approx\delta(E-\epsilon_i)\]where \(D(\Delta E)\) is the distribution function used. Note that the distribution function used may be a user-defined function. Alternatively a distribution function may be retrieved from
distribution
.- Parameters:
E (
array_like
) – energies to calculate the DOS ateig (
array_like
) – electronic eigenvaluesdistribution (
func
orstr
, optional) – a function that accepts \(\Delta E\) as argument and calculates the distribution function.
See also
sisl.physics.distribution
a selected set of implemented distribution functions
COP
calculate COOP or COHP curves
PDOS
projected DOS (same as this, but projected onto each orbital)
spin_moment
spin moment
- Returns:
numpy.ndarray
– DOS calculated at energies, has same length as E