About phlab

This package aims to create a convenient set of tools for fitting experimental data and obtaining electron-phonon coupling values from phonon contribution in resonant inelastic X-ray scattering cross-section.

It currently includes:

  • Model for 1D harmonic oscillator interacting with a single electronic level.
  • Model for 2D harmonic oscillator (two modes active).
  • Model for 1D harmonic oscillator, distorted and displaced in the excited state (excited-state potential energy surface (PES), differs from the ground state one).

If you find this code useful, please cite the following paper :

@article{PhysRevB.101.214307,
  title = {Generalization of the Franck-Condon model for phonon excitations by resonant  inelastic x-ray scattering},
  author = {Geondzhian, Andrey and Gilmore, Keith},
  journal = {Phys. Rev. B},
  volume = {101},
  issue = {21},
  pages = {214307},
  numpages = {12},
  year = {2020},
  month = {Jun},
  publisher = {American Physical Society},
  doi = {10.1103/PhysRevB.101.214307},
  url = {https://link.aps.org/doi/10.1103/PhysRevB.101.214307}
}