Low-frequency Raman scattering in binary silicate glass: Boson peak frequency and its general expression

Kensaku Nakamura, Yoshihiro Takahashi, Minoru Osada, Takumi Fujiwara

Research output: Contribution to journalArticle

7 Citations (Scopus)

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 languageEnglish
Pages (from-to)1012-1014
Number of pages3
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume121
Issue number1420
DOIs
Publication statusPublished - 2013 Dec
Externally publishedYes

Keywords

  • Boson peak
  • Glass
  • Optical spectroscopy
  • Raman scattering
  • Silicate

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry
  • Chemistry(all)
  • Condensed Matter Physics

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