Optical Absorption Spectra of the A Band in KBr:Pb2+ Crystals

Abstract
The shape of the A band in KBr:Pb2+ has been studied at various temperatures between 13 and 296 K. The band is almost symmetric at low temperatures but slightly asymmetric at high temperatures. The observed line shape of the A band in KBr:Pb2+ is discussed in terms of the Jahn–Teller effect and is compared with that of the A band in In+ and Tl+ doped alkali halides.

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