Analysis of the parameters of a smeared orientational transition at 250–260 K in C60 crystals

被引：0
|
作者：
G. A. Malygin
机构：
[1] Russian Academy of Sciences,Ioffe Physicotechnical Institute
来源：
Physics of the Solid State | 2001年 / 43卷
关键词：
Spectroscopy; Phase Transition; State Physics; Heat Capacity; Shear Strain;
D O I：
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中图分类号：
学科分类号：
摘要：
The orientational structural transformation in C60 crystals at temperatures of 250–260 K is investigated within the theory of smeared first-order phase transitions. The parameters of this transformation are analyzed using the experimental temperature dependences of the heat capacity and the inelastic (ferroelastic) strain rate in the phase transition range. The elementary volume of the transformation (11–83 nm3) in a correlated motion of C60 molecules and the spontaneous shear strain of the lattice (2.4×10−2) upon its transformation from the simple cubic to the face-centered cubic structure are determined.
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页码：1989 / 1994
页数：5
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