SCANNING TUNNELING MICROSCOPY INVESTIGATION OF GOLD-ION BOMBARDMENT DAMAGES ON GRAPHITE SURFACE | Zendy

Junjue Yan | Zendy; BAI CHUAN-YONG | Zendy; YANG WEI-SHENG | Zendy; Xuelin Wang | Zendy; WeiJiang Zhao | Zendy; YU FU-CHUN | Zendy; Zhai Pengji | Zendy; Xiaowei Tang | Zendy

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SCANNING TUNNELING MICROSCOPY INVESTIGATION OF GOLD-ION BOMBARDMENT DAMAGES ON GRAPHITE SURFACE

Author(s) -

Junjue Yan,

BAI CHUAN-YONG,

YANG WEI-SHENG,

Xuelin Wang,

WeiJiang Zhao,

YU FU-CHUN,

Zhai Pengji,

Xiaowei Tang

Publication year - 1993

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.42.1027

Subject(s) - hillock , scanning tunneling microscope , graphite , ion , materials science , atomic physics , nanotechnology , molecular physics , chemistry , physics , composite material , organic chemistry

In this work we investigate damages on graphite surface gercerated by bombardment with 530 KeV Au+ or 4.5 MeV Au++ at a dose of 1×1012 cm-2. The most significant damages are hillocks with a diameter around 1. 8 nm, as seen from our STM images. Very often they are surrounded by variable 31/2×31/2R30° superstructures of graphite, which die away within a distance of 1 to 3 nm. The density of the hillocks is in good agreement with the ion dose, indicating that they were induced by individual incident gold ions. Besides, in the STM images of higher magnifications there exist many smaller hillocks, which might be caused by the secondary ions or atoms.

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