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Infrared and Raman spectra of the spinel ZnGa2O4 (1973)

Van Gorkom, G. G. P. ; Haanstra, J. H. ; v. d. Boom, H.

Chichester [u.a.] : Wiley-Blackwell

Journal of Raman Spectroscopy 1 (1973), S. 513-519

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ISSN: 0377-0486

Keywords: Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Physics

Notes: A study of the infrared and Raman spectra of single crystals and powders of ZnGa2O4 yields the following k = 0 phonon frequencies: 175 cm-1 (T1u), 328 cm-1 (T1u), 420 cm-1 (T1u), 570 cm-1 (T1u), 467 cm-1 (T2g), 611 cm-1 (T2g), 638 cm -1 (Eg) and 714 cm-1 (A1g).The results are compared with the frequencies of the vibronic sidebands of the Cr3+ R line emission as observed in ZnGa2O4: Cr3+. It is found that the strogest vibronics of the R lines are due to coupling of the Cr3+ electrons with the T1u modes of the ZnGa2O4 lattice, especially with the two higher frequency T1u modes.

Additional Material: 2 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/jrs.1250010510

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