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Nano-faceting of the Ru (1120) surface

机译:Ru(1120)表面的纳米刻面

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摘要

Nano-faceting of Ru (1120) induced by NO_2 is studied by scanning tunneling microscopy (STM), low energy electron diffraction (LEED) and Auger electron spectroscopy (AES). The surface becomes fully faceted and covered with oxygen upon annealing the sample at T ≥ 650 K in NO_2 (10~(-8) Torr) and the faceted surface is stable in ultra high vacuum (UHV) for sample temperatures <850 K. The kinematical LEED simulations and STM results show that the faceted surface consists of uniform long ridges running along [0001] direction with four facets (1011), (0111),(1011), and (0111) on the ridges.
机译:通过扫描隧道显微镜(STM),低能电子衍射(LEED)和俄歇电子能谱(AES)研究了NO_2诱导的Ru(1120)的纳米刻面。当样品在T≥650 K的NO_2(10〜(-8)Torr)中进行退火时,表面变得完全切面并被氧气覆盖,并且切面表面在样品温度<850 K的超高真空(UHV)中稳定。 LEED运动学仿真和STM结果表明,多面表面由沿[0001]方向延伸的均匀长脊组成,脊上有四个小面(1011),(0111),(1011)和(0111)。

著录项

  • 来源
    《Surface Science》 |2010年第6期|L12-L15|共4页
  • 作者单位

    Department of Physics and Astronomy, and Laboratory for Surface Modification, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States;

    rnDepartment of Physics and Astronomy, and Laboratory for Surface Modification, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States;

    rnDepartment of Physics and Astronomy, and Laboratory for Surface Modification, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States;

    rnDepartment of Physics and Astronomy, and Laboratory for Surface Modification, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States;

    rnDepartment of Physics and Astronomy, and Laboratory for Surface Modification, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States;

    rnDepartment of Physics and Astronomy, and Laboratory for Surface Modification, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, United States;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    ruthenium; oxygen; faceting; morphological evolution;

    机译:钌;氧;刻面形态演变;

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