Softer region at boundary of supercooled liquid - Crystal in glassy fresnoite

Yoshihiro Takahashi, Minoru Osada, Hirokazu Masai, Takumi Fujiwara

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The transition between the supercooled liquid (SCL) and crystal phases was investigated by in situ observation of boson peak in a glassy fresnoite (Ba2 TiSi2 O8) with an extremely high nucleation ability. The glassy fresnoite revealed anomalous boson behavior, in that the boson peak's full width at half maximum diverged at T/ Tg ∼1.2. This behavior suggests that an elastically softer region exists at the interface of the fresnoite nucleus/crystallite in the SCL state.

Original languageEnglish
Article number241909
JournalApplied Physics Letters
Issue number24
Publication statusPublished - 2009
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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