Low-frequency inelastic light scattering of zincogermanate glass in supercooledliquid regime

Yoshihiro Takahashi; Minoru Osada; Masataka Ando; Rie Ihara; Takumi Fujiwara

doi:10.1063/1.3602085

Low-frequency inelastic light scattering of zincogermanate glass in supercooledliquid regime

Yoshihiro Takahashi, Minoru Osada, Masataka Ando, Rie Ihara, Takumi Fujiwara

ENG - Applied Physics

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

We performed in situ observation of low-frequency inelastic light scattering in a zincogermanate glass showing nanocrystallization of semiconductive Zn₂GeO₄ to elucidate the crystallization and phase transformation dynamics. In supercooledliquid state, an anomalous damping behavior of Boson peak was observed as the elastic softening happened. Combination of Boson and TEM studies revealed that the Boson damping is due to the liquid-liquid phase separation, which occurs prior to nanocrystallization, suggesting possibility of in situ spectroscopic observation of phase separation.

Original language	English
Article number	126105
Journal	Journal of Applied Physics
Volume	109
Issue number	12
DOIs	https://doi.org/10.1063/1.3602085
Publication status	Published - 2011 Jun 15

ASJC Scopus subject areas

Physics and Astronomy(all)

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AU - Ando, Masataka

AU - Ihara, Rie

AU - Fujiwara, Takumi

PY - 2011/6/15

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N2 - We performed in situ observation of low-frequency inelastic light scattering in a zincogermanate glass showing nanocrystallization of semiconductive Zn2GeO4 to elucidate the crystallization and phase transformation dynamics. In supercooledliquid state, an anomalous damping behavior of Boson peak was observed as the elastic softening happened. Combination of Boson and TEM studies revealed that the Boson damping is due to the liquid-liquid phase separation, which occurs prior to nanocrystallization, suggesting possibility of in situ spectroscopic observation of phase separation.

AB - We performed in situ observation of low-frequency inelastic light scattering in a zincogermanate glass showing nanocrystallization of semiconductive Zn2GeO4 to elucidate the crystallization and phase transformation dynamics. In supercooledliquid state, an anomalous damping behavior of Boson peak was observed as the elastic softening happened. Combination of Boson and TEM studies revealed that the Boson damping is due to the liquid-liquid phase separation, which occurs prior to nanocrystallization, suggesting possibility of in situ spectroscopic observation of phase separation.

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