Absorption spectra of Tl+-doped KMgF3 single crystals have been measured at various temperatures between 9 and 300 K in the V.u.v. region. Three main bands are found, and they are labelled A, B, C in order of increasing energy because of their close similarities to those of Tl+ ions in alkali halides. The most striking novelty in KMgF3:Tl+ is given by the clearly resolved structures of the A and C bands, which both exhibit three components at all temperatures. These structures are related to the Jahn-Teller splitting, due to the interaction of the impurity ion with non-cubic lattice vibrations, and to a static distortion of the host lattice.

Scacco A., F.S. (1993). Optical absorption of Tl+ ions in KMgF3 crystals. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 54(9), 1035-1041.

Optical absorption of Tl+ ions in KMgF3 crystals

PALUMMO, MAURIZIA;
1993

Abstract

Absorption spectra of Tl+-doped KMgF3 single crystals have been measured at various temperatures between 9 and 300 K in the V.u.v. region. Three main bands are found, and they are labelled A, B, C in order of increasing energy because of their close similarities to those of Tl+ ions in alkali halides. The most striking novelty in KMgF3:Tl+ is given by the clearly resolved structures of the A and C bands, which both exhibit three components at all temperatures. These structures are related to the Jahn-Teller splitting, due to the interaction of the impurity ion with non-cubic lattice vibrations, and to a static distortion of the host lattice.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/03 - Fisica della Materia
eng
Senza Impact Factor ISI
OPTICAL ABSORPTION; TL+ IONS; FLUOROPEROVSKITES; KMGF3
Scacco A., F.S. (1993). Optical absorption of Tl+ ions in KMgF3 crystals. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 54(9), 1035-1041.
Scacco, A; Fioravanti, S; Missori, M; Grassano, Um; Luci, A; Palummo, M; Giovenale, E; Zema, N
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2108/53457
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