• 主题
高级搜索  >
历史搜索 清空历史
首页> 中文期刊> 《中国物理快报：英文版》 >Influence of Surface Transition Layers on Phase Transformation and Pyroelectric Properties of Ferroelectric Thin Film

Influence of Surface Transition Layers on Phase Transformation and Pyroelectric Properties of Ferroelectric Thin Film

         
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

Taking into account surface transition layers (STLs), we study the phase transformation and pyroelectric properties of ferroelectric thin films by employing the transverse Ising model (TIM) in the framework of the mean field approximation. The distribution functions representing the intra-layer and inter-layer couplings between the two nearest neighbour pseudo-spins are introduced to characterize STLs. Compared with the results obtained by the traditional treatments for the thin films using only the single surface transition layer (SSL), it is shown that the STL model reflects a more realistic and comprehensive situation of films. The effects of various parameters on the phase transformation properties have shown that STL can make the Curie temperature of the film higher or lower than that of the corresponding bulk material, and the thickness of STL is a key factor influencing the film properties. For a film with definite thickness, there exists a critical STL thickness at which ferroelectricity will disappear when the intra-layer and inter-layer interactions are weak.

著录项

  • 来源
    《中国物理快报：英文版》 |2008年第9期|3422-3425|共4页
  • 作者

    SUN Pu-Nan; L(U) Tian-Quan; CHEN Hui; CAO Wen-Wu;

  • 作者单位

    Center of Condensed Matter Science and Technology, Harbin Institute of Technology, Harbin 150001;

    Department of Physics, Heilongjiang University, Harbin 150080;

    Center of Condensed Matter Science and Technology, Harbin Institute of Technology, Harbin 150001;

    Center of Condensed Matter Science and Technology, Harbin Institute of Technology, Harbin 150001;

    Center of Condensed Matter Science and Technology, Harbin Institute of Technology, Harbin 150001;

    Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania, 16802, USA;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 物理学;
  • 关键词

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号