Author:
Orlovskii Yu.,Vagapova E.,Dolgov L.,Vinogradova E.,Peet V.,Boltrushko V.,Hizhnyakov V.
Abstract
One- and two-exciton cooperative states in ion pairs in Nd3+ doped CdF2, CaF2, and SrF2 crystals are studied. Strong resonance electrical exchange interaction with spin-flip determines the luminescence excitation spectra of the one-exciton entangled state.