caa a22 4500 477060382 CHVBK 20180405111358.0 cr unu---uuuuu 170330e19961101xx s 000 0 eng 10.1007/BF02436148 doi (NATIONALLICENCE)springer-10.1007/BF02436148 Self-trapped excitons in low-symmetry fluoride crystals [Elektronische Daten] [E. Radzhabov, A. Nepomnyashchikh] Triplet self-trapped excitons have been detected in low-symmetry crystals of the fluorides BaFCl4, BaFBr, and LaF3. In BaFBr crystals two types of excitons, on-center and off-center (with a symmetric or displaced configuration). The slow initiation of exciton luminescence in BaFBr is associated with the barrier transition from an on-center to an off-center configuration. In LaF3 crystals tunnelling population of the exciton state also appears in the initiation. In LaF3 crystals excitons appear only in the luminescence and excitation spectra while in the absorption spectra the exciton transitions are concealed beneath band-to-band transitions. Plenum Publishing Corporation, 1997 Radzhabov E. aut Nepomnyashchikh A. aut Russian Physics Journal Kluwer Academic Publishers-Consultants Bureau 39/11(1996-11-01), 1041-1049 1064-8887 39:11<1041 1996 39 11182 https://doi.org/10.1007/BF02436148 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02436148 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Radzhabov E. aut NATIONALLICENCE 700 1- Nepomnyashchikh A. aut NATIONALLICENCE 773 0- Russian Physics Journal Kluwer Academic Publishers-Consultants Bureau 39/11(1996-11-01), 1041-1049 1064-8887 39:11<1041 1996 39 11182 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer