中国物理B ›› 2006, Vol. 15 ›› Issue (8): 1892-1895.doi: 10.1088/1009-1963/15/8/044

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Scanning tunnelling microscope studies of growth of RuO2(110) thin layer on Ru(0001)

张寒洁, 吕　斌, 陆赟豪, 黄　寒, 李海洋, 鲍世宁, 何丕模   

  1. Department of Physics, Zhejiang University, Hangzhou 310027,China
  • 收稿日期:2005-07-07 修回日期:2006-04-13 出版日期:2006-08-20 发布日期:2006-08-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10274072), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No 20030335017).

Scanning tunnelling microscope studies of growth of RuO2(110) thin layer on Ru(0001)

Zhang Han-Jie(张寒洁), Lü Bin(吕斌), Lu Yun-Hao(陆赟豪), Huang Han(黄寒), Li Hai-Yang(李海洋), Bao Shi-Ning(鲍世宁), and He Pei-Mo(何丕模)†   

  1. Department of Physics, Zhejiang University, Hangzhou 310027,China
  • Received:2005-07-07 Revised:2006-04-13 Online:2006-08-20 Published:2006-08-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10274072), and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No 20030335017).

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摘要： This paper reports that the growth of RuOx(110) thin layer growth on Ru(0001) has been investigated by means of scanning tunnelling microscope (STM). The STM images showed a domain structure with three rotational domains of RuOx(110) rotated by an angle of 120℃. The as-grown RuOx(110) thin layer is expanded from the bulk-truncated RuOx(110) due to the large mismatch between RuOx(110) and the Ru(0001) substrate. The results also indicate that growth of RuOx(110) thin layer on the Ru(0001) substrate by oxidation tends first to formation of the Ru-O (oxygen) chains in the [001] direction of RuOx(110).

关键词: ruthenium oxide, growth, scanning tunnelling microscope

Abstract: This paper reports that the growth of RuO2(110) thin layer growth on Ru(0001) has been investigated by means of scanning tunnelling microscope (STM). The STM images showed a domain structure with three rotational domains of RuO2(110) rotated by an angle of 120℃. The as-grown RuO2(110) thin layer is expanded from the bulk-truncated RuO2(110) due to the large mismatch between RuO2(110) and the Ru(0001) substrate. The results also indicate that growth of RuO2(110) thin layer on the Ru(0001) substrate by oxidation tends first to formation of the Ru-O (oxygen) chains in the [001] direction of RuO2(110).

Key words: ruthenium oxide, growth, scanning tunnelling microscope

中图分类号:  (Scanning tunneling microscopy (including chemistry induced with STM))

  • 68.37.Ef
68.55.-a (Thin film structure and morphology) 68.37.Ps (Atomic force microscopy (AFM)) 68.47.Gh (Oxide surfaces) 07.79.Cz (Scanning tunneling microscopes)