Electronic and vibrational levels of the photochromic Mn in sillenites

P. Beneventi, B. Briat, R. Capelletti, M. Gospodinov, L. Kovács, E. Mazzocchi, A. Ruffini

Research output: Contribution to journalConference article

2 Citations (Scopus)


Visible and high resolution FTIR spectroscopy (at 9K) and MCD (at 1.4 K) measurements are applied to study the valency and the coordination of Mn in photorefractive and photochromic sillenites (BSO, BOO, BTO and mixed BSO-BMnO) single crystals. Vibrational transitions of Mn5+ in Td symmetry, due to excitation of an F mode, its overtone and combination with an A mode are detected. The crystal field spectra and MCD results strongly support the d2 configuration for Mn in Td symmetry. Vibronic replicas of the 3A21E electronic transition, in which ones or two vibrational modes are also excited, are reported.

Original languageEnglish
Pages (from-to)243-247
Number of pages5
JournalRadiation Effects and Defects in Solids
Issue number1-4
Publication statusPublished - Jan 1 1999
EventProceedings of the 1998 8th Europhysical Conference on Defects in Insulating Materials, EURODIM 98 - Keele, United Kingdom
Duration: Jun 6 1998Jun 11 1998



  • Crystal field transitions
  • FTIR spectroscopy
  • Impurities
  • Magnetic circular dichroism
  • Sillenites
  • Vibrational modes

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Beneventi, P., Briat, B., Capelletti, R., Gospodinov, M., Kovács, L., Mazzocchi, E., & Ruffini, A. (1999). Electronic and vibrational levels of the photochromic Mn in sillenites. Radiation Effects and Defects in Solids, 150(1-4), 243-247. https://doi.org/10.1080/10420159908226237