M. Peteanu et al., CU2-B2O3-PBO GLASSES STUDIED BY EPR( CONTAINING TEO2), Journal of materials science. Materials in electronics, 7(3), 1996, pp. 165-170
EPR absorption spectra of Cu2+ were investigated in vitreous matrices
of the system [70TeO(2)-25B(2)O(3)-5PbO] over a wide range of concentr
ations. The detected absorptions are strongly dependent on the matrix
composition. Fluctuations of the ligand field were evident in the Cu2 environment. The concentration of the paramagnetic species that cause
the EPR absorptions decreases considerably at the upper limit of the
investigated compositional range.