Interactions and Energy Transfer between Europium Ions at Different Lattice Sites in Y2O3
In Y2O3 the Eu3+ ions can occupy two different lattice sites with the site symmetries C3i and C2. We have studied stationary and time-resolved energy transfer from the Eu3+(C3i) ions to the Eu3+(C2) ions and the spectrum of Eu3+ ion pairs at identical lattice sites. The experimental results can be explained with a fixed range of interaction Ro ≈ 9 A between the Eu3+ ions. The results show some evidence for coherency effects in the energy transfer from Eu3+ (C3i) ions to Eu3+(C2) ions.
KeywordsEnergy Transfer Interaction Range Energy Level Scheme Pair Spectrum Coherent Pair State
Unable to display preview. Download preview PDF.