偏光显微镜在Smectic CA*相结晶动力学研究中的应用

IF 0.5 4区物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY Acta Physica Polonica A Pub Date : 2023-08-01 DOI:10.12693/aphyspola.144.93

A. Deptuch, A. Lelito, M. Urbańska

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引用次数: 0

摘要

用偏光显微镜研究了3F6FPhF6化合物的等温和非等温结晶过程，发现其晶相为近晶C∗和近晶C∗A。在近晶C * /近晶C * A相变中有大于20k的大迟滞。用连续冷却过渡图分析了非等温结晶动力学。估计了半晶C * A相至少部分玻璃化所需的冷却速率。结晶的热力学驱动力与平动自由度的热能之间的关系对结晶有很强的影响。

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Application of Polarizing Optical Microscopy in Investigation of Crystallization Kinetics from Smectic CA* Phase

Polarizing optical microscopy is used to investigate the isothermal and non-isothermal crystallization of the 3F6FPhF6 compound, which exhibits the smectic C ∗ and smectic C ∗ A phases. A large hysteresis of above 20 K in the smectic C ∗ /smectic C ∗ A phase transition is reported. The kinetics of non-isothermal crystallization is analyzed by means of the continuous cooling transition diagram. The cooling rate necessary for at least partial vitriﬁcation of the smectic C ∗ A phase is estimated. The relationship between the thermodynamic driving force of crystallization and thermal energy of the translational degrees of freedom is shown to have a strong impact on crystallization.

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来源期刊

Acta Physica Polonica A 物理-物理：综合

CiteScore

1.50

自引率

0.00%

发文量

141

审稿时长

6 months

期刊介绍： Contributions which report original research results and reviews in the fields of General Physics, Atomic and Molecular Physics, Optics and Quantum Optics, Quantum Information, Biophysics, Condensed Matter, and Applied Physics are welcomed.