Successive phase transformation in stoichiometric glassy Li 2Ge4O9: Isothermal and nonisothermal study

Yoshihiro Takahashi*, Jun Kunitomo, Takamichi Miyazaki, Minoru Osada, Takumi Fujiwara

*この研究の対応する著者

研究成果: Article査読

5 被引用数 (Scopus)

抄録

Stoichiometric glassy germanate is an important material in geophysics and materials science. Despite the binary Li2O-GeO2 system being primitive, its crystallization mechanism remains undetermined. In this study, we investigated crystallization and structural ordering in glassy ferroelectric Li2Ge4O9. Using isothermally and nonisothermally prepared samples, we demonstrated that the glassy Li 2Ge4O9 shows no direct structural change to the stoichiometric phase; it rather forms α-GeO2 nanocrystals, i.e., it undergoes successive phase transformation. The results suggest that the metastable immiscibility is related to the ordering that occurs prior to crystallization of the stoichiometric phase.

本文言語English
論文番号033512
ジャーナルJournal of Applied Physics
114
3
DOI
出版ステータスPublished - 2013 7 21
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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