Paraelectric-ferroelectric interface dynamics induced by latent heat transfer and irreversibility of ferroelectric phase transitions

• 来源期刊: 中国物理（英文版）
• 关键词: ferroelectric phase transition interface dynamics irreversible thermodynamics
• 年，卷（期）: 2006,（6）
• 页码范围: 1364-1369
• 页数: 6页
• 语种: 英文

摘要

The temperature gradients that arise in the paraelectric-ferroelectric interface dynamics induced by the latent heat transfer are studied from the point of view that a ferroelectric phase transition is a stationary, thermal-electric coupled transport process. The local entropy production is derived for a ferroelectric phase transition system from the Gibbs equation. Three types of regions in the system are described well by using the Onsager relations and the principle of minimum entropy production. The theoretical results coincides with the experimental ones.