Fluorescence of Cr3+ ions in MgAl2O4 epitaxial nanosize spinel films on SrTiO3 substrates Feofilov, S. P. ; Kulinkin, A. B. ; Kaveev, A. K. ; Sokolov, N. S. ; Suturin, S. M. Abstract Publication: Thin Solid Films Pub Date: January 2020 DOI: 10.1016/j.tsf.2019.137732 Bibcode: 2020TSF...693m7732F