Phonon density of states of CdI2 deduced fro,the fine structure of the 3A2g → 1Eg electronic transition of CdI2:Ni2+ |
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| Authors: | SR Kuindersma PR Boudewijn |
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| Institution: | Laboratory of Inorganic Chemistry, Materials Science Center of the University, Nijenborgh 16, 9747 AG Groningen, The Netherlands |
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| Abstract: | The absorption and MCD spectra of the 3A2g → 1Eg transition of CdI2:Ni2+ at about 12,500 cm?1 have been measured. The unusual vibronic fine structure is explained by the coupling of the phonons of the CdI2 lattice to the electronic states of Ni2+. The dispersion curves for the acoustical and optical branches in the Brillouin Zone of CdI2 are deduced. |
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