Abstract
Low-frequency Raman measurement was performed in alkali and alkaline-earth silicate glasses to elucidate the effect of introduction of network modifiers on boson peak nature. Our study illustrated that introduction of small/medium ions tended to increase in the boson peak frequency (ωBP), whereas the introduction of large ions tended to decrease the frequency. Although ωBP has been suggested to be proportional to the shear modulus, no linear relationship was obtained in these binary systems. Instead, we experimentally demonstrated that mean atomic volume can explain variations in ωBP regardless of the trend of boson peaks.
Original language | English |
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Pages (from-to) | 1012-1014 |
Number of pages | 3 |
Journal | Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan |
Volume | 121 |
Issue number | 1420 |
DOIs | |
Publication status | Published - 2013 Dec |
Externally published | Yes |
Keywords
- Boson peak
- Glass
- Optical spectroscopy
- Raman scattering
- Silicate
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
- Chemistry(all)
- Condensed Matter Physics