• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Materials Research >Atomic mapping of structural distortions in 109° domain patterned BiFeO_3 thin films
【24h】

Atomic mapping of structural distortions in 109° domain patterned BiFeO_3 thin films

机译：109°畴图案化BiFeO_3薄膜中结构畸变的原子映射

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Structural distortions at the nanoscale are delicately linked with many exotic properties for ferroic thin films. Based on advanced aberration corrected scanning transmission electron microscopy, we observe BiFeO_3 thin films with variant tensile strain states and demonstrate at an atomic scale the interplay of intrinsic spontaneous structural distortions with external constraints. Structural parameters (the rhombohedral distortion and domain wall shear distortion) under zero (BiFeO_3/GdScO_3) and 1.5% (BiFeO_3/PrScO_3) lateral strain states are quantitatively analyzed which are suppressed within a few unit cells near the film/substrate interfaces. In particular, an interfacial layer with asymmetrical lattice distortions (enhanced and reduced out-of-plane lattice spacing) on the two sides of 109° domain wall is resolved. These structural distortions near the film/substrate interface in ferroic thin films reveal intense tanglement of intrinsic distortions of BiFeO_3 with external boundary conditions, which could provide new insights for the development of nanoscale ferroelectric devices.
机译：纳米级的结构畸变与铁磁性薄膜的许多奇特特性有着微妙的联系。基于先进的像差校正扫描透射电子显微镜，我们观察到BiFeO_3薄膜具有不同的拉伸应变状态，并在原子尺度上证明了固有的自发结构变形与外部约束的相互作用。定量分析了在零（BiFeO_3 / GdScO_3）和1.5％（BiFeO_3 / PrScO_3）横向应变状态下的结构参数（菱形畸变和畴壁剪切畸变），这些参数在膜/基底界面附近的几个单位晶格中受到抑制。尤其是，解决了在109°畴壁的两侧具有不对称晶格畸变（增强和减小的面外晶格间距）的界面层。铁磁性薄膜中膜/基底界面附近的这些结构变形揭示了BiFeO_3固有变形与外部边界条件的强烈纠缠，这可能为纳米铁电器件的开发提供新的见解。

著录项

  • 来源
    《Journal of Materials Research》 |2017年第12期|2423-2430|共8页
  • 作者

    Wen-Yuan Wang; Yin-Lian Zhu; Yun-Long Tang; Meng-Jiao Han; Yu-Jia Wang; Xiu-Liang Ma;

  • 作者单位

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China and Science and Technology on Surface Physics and Chemistry Laboratory, 621908 Jiangyou, Sichuan, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110016, China and School of Materials Science and Engineering, Lanzhou University of Technology,730050 Lanzhou, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
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