TITLE

Softer region at boundary of supercooled liquid–crystal in glassy fresnoite

AUTHOR(S)
Takahashi, Yoshihiro; Osada, Minoru; Masai, Hirokazu; Fujiwara, Takumi
PUB. DATE
June 2009
SOURCE
Applied Physics Letters;6/15/2009, Vol. 94 Issue 24, p241909
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The transition between the supercooled liquid (SCL) and crystal phases was investigated by in situ observation of boson peak in a glassy fresnoite (Ba2TiSi2O8) 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.
ACCESSION #
42223741

 

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