FitModel_Frota

chemicha edited this page Feb 2, 2016 · 1 revision

Frota Resonance

This fit model is suited to fit resonances with a Frota lineshape.
H.O. Frota, Phys. Rev. B 45, 1096 (1992)

For instance, such resonances occur in interference processes, such as the Kondo effect in scanning tunneling spectroscopy. Notice: Delivers usually a better fit than the Fano lineshape.

Generalized Frota lineshape: S. Frank and D. Jacob, Phys. Rev. B 92, 235127 (2015)

Parameters:

  • y_0: offset in y direction
  • x_center: center of the resonance
  • A: amplitude
  • Gamma: width of the resonance
  • m: linear background
  • phi: lineshape factor
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