Raman scattering in Li2B4O7 crystals with impurities

Radioluminescent mechanism of Li2B4O7:Cu crystal

“…4 and ho ¼510 cm À 1 [12], one can obtain the Huyng-Rhys parameter S¼10. This result shows that the strength of the electron-phonon coupling is in the strong coupling regime [13].…”

Raman scattering in glassy Li2B4O7 doped with Er2O3

“…According to Refs. [8,9,27,28], the 900-1050 cm -1 region corresponds to symmetric stretching of BO 3 groups (936, 953 and 1014 cm -1 ), while the 600-900 cm -1 region is associated with asymmetric deformations of flat BO 3 triangles (694 cm -1 ) and vibrations of oxygenic bridges between one tetrahedral and one trigonal boron atom, or between one tetrahedral and two trigonal boron atoms. Note that the vibrations responsible for distorted modes of BO 4 groups are also observed in this frequency region.…”

“…In the recent years, a number of works have been devoted to the studies of vibrational spectra of Li 2 B 4 O 7 [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Except for Refs.…”