与相变潜热有关的铁电-顺电相界动力学及其尺寸效应  

Ferroelectric-paraelectric interface dynamics related to latent heat and its finite-size effects

作　　者：艾树涛[1] 蔡元贞[2] 

机构地区：[1]临沂师范学院物理系,凝聚态物理研究所,临沂276005 [2]临沂师范学院图书馆,临沂276005

出　　处：《物理学报》2006年第7期3721-3724,共4页Acta Physica Sinica

基　　金：临沂师范学院科研基金(批准号:YJB03004);临沂师范学院重点建设规划项目资助的课题.~~

摘　　要：对于铁电-顺电相界的快移动,提出了相变潜热释放传导机理进行解释,并对其尺寸效应做了进一步研究.研究表明相界移动速率随体系厚度的减小而增加.理论结果与实验符合.To explain the fast motion of ferroelectric-paraelectric interface, a mechanism based on latent heat release and conduction has been introduced. Its finite-size effect shows that the velocity of interface motion increases with decreasing system thickness. The theoretical results agree with experiments.

关 键 词：铁电相变 相界动力学 相变潜热 尺寸效应 

分 类 号：O414.13[理学—理论物理]