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Halogen impurity modes and secondary features in the Raman spectra of CdBr2 and CdCl2

โœ Scribed by D.J. Lockwood; R.W.G. Syme

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
436 KB
Volume
131
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

The 10 and 300 K Raman spectra of CdBr, and CdClz have been investigated at high sensitivity. While some of the new lines are of second-order origin, others are associated with local modes of halogen impurities. Lines at 107 and 170 cm-' in CdBr, are assigned to the EJTO) and A,,(TO) lattice modes respectively. The corresponding IR-active modes are not evident in the CdClr spectrum; it is suggested that they appear for CdBr, as a result of disorder.

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