arpes.fits.fit_models.functional_forms#

Common implementations of peaks, backgrounds for other models.

Functions

affine_broadened_fd(x[, center, width, ...])

Fermi function convoled with a Gaussian together with affine background.

band_edge_bkg(x[, center, width, amplitude, ...])

Lorentzian plus affine background multiplied into fermi edge with overall offset.

fermi_dirac(x[, center, width, scale])

Fermi edge, with somewhat arbitrary normalization.

fermi_dirac_affine(x[, center, width, ...])

Fermi step edge with a linear background above the Fermi level.

gstep(x[, center, width, erf_amp])

Fermi function convolved with a Gaussian.

gstepb(x[, center, width, erf_amp, ...])

Complementary error function as a approximate of the Fermi function convoled with a Gaussian.

gstepb_mult_lorentzian(x[, center, width, ...])

A Lorentzian multiplied by a gstepb background.