Vibronic transitions of rare earth ions

  title={Vibronic transitions of rare earth ions},
  author={Andries Meijerink and Celso de Mello Doneg{\'a} and Andries Ellens and Joost Sytsma and George Blasse},
Abstract An overview of recent research on vibronic transitions of intraconfigurational 4f n transitions in rare earth ions is given. The strong variation in vibronic coupling strengths is shown to depend on the type of rare earth ion and the chemical nature of the ligands. In the discussion of the mechanism of vibronic coupling, new evidence for the importance of Δ process vibronics (or Franck-Condon phonon replicas) next to the usually considered M process vibronics (or vibrationally induced… CONTINUE READING