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Bose Peak and Vibrational Bands in Raman Spectra of Sodium Borosilicate Glass

Vlasta Mohaček ; Ruđer Bošković Institute, P. P. Box 1016, 41000 Zagreb, Croatia
Krešimir Furić ; Ruđer Bošković Institute, P. P. Box 1016, 41000 Zagreb, Croatia

Sažetak

The existence of an asymmetric broad band called boson (Bose) peak in W as well as in VH polarized Raman spectra of sodium borosilicate glass with various amounts of SnO is shown and its bandshape fitted according to the formula /v H — C(u>)g(io) where n(to) stands for Bose-Einstein occupation number and C(m)g(m) is given by C(u>)g(a>) =
Parameter On addition of SnO (1.5 to 10 wt %) the shape of boson peak in VH spectra changes on addition of 1.5 wt %, but remains unchanged on further addition of SnO. In the W - 4/3 VH spectrum, a new peak around 530 cm-1 appears, indicating that tin ions behave as network formers.

Ključne riječi

Hrčak ID:

137266

URI

https://hrcak.srce.hr/137266

Datum izdavanja:

15.6.1992.

Posjeta: 1.396 *