...
首页> 外文期刊>Journal of Crystal Growth >Microstructure of epitaxial rutile TiO_2 films grown by molecular beam epitaxy on r-plane Al_2O_3
【24h】

Microstructure of epitaxial rutile TiO_2 films grown by molecular beam epitaxy on r-plane Al_2O_3

机译:分子束外延在r平面Al_2O_3上生长的外延金红石型TiO_2薄膜的微观结构

获取原文
获取原文并翻译 | 示例
           

摘要

The paper reports on the microstructure of rutile TiO_2 films grown on r-plane sapphire surfaces by molecular beam epitaxy as a function of oxygen flux during growth. Single-phase, epitaxial rutile films were obtained for all growth conditions. X-ray diffraction and transmission electron microscopy showed that the films contained a high density of twins, likely as a result of different variants nucleating on the substrate simultaneously. At low oxygen fluxes, surface features were dominated by twin variants. With increasing oxygen flux, the surface morphology changed due to the reduced mobility of ad-atoms. The relationship between the arrangements of oxygen octahedra in the sapphire and rutile structures, the epitaxial orientation and twin formation is discussed.
机译:本文报道了通过分子束外延在r面蓝宝石表面上生长的金红石TiO_2薄膜的微观结构与生长过程中氧通量的关系。在所有生长条件下均获得了单相外延金红石薄膜。 X射线衍射和透射电子显微镜显示该膜含有高密度的孪晶,这可能是由于不同的变体同时在基底上形核的结果。在低氧通量下,表面特征主要由孪生变量组成。随着氧气通量的增加,由于ad原子迁移率的降低,表面形态发生了变化。讨论了蓝宝石中氧八面体的排列与金红石结构,外延取向和孪晶形成之间的关系。

著录项

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