| 扫描隧道显微镜观察石墨被Au离子轰击后的表面损伤(Ⅱ) |
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| 引用本文： | 王宇钢,康一秀,赵渭江,颜莎,严隽珏,杨威生,翟鹏济,唐孝威.扫描隧道显微镜观察石墨被Au离子轰击后的表面损伤(Ⅱ)[J].物理学报,1997,46(10):1965-1971. |
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| 作者姓名： | 王宇钢 康一秀 赵渭江 颜莎 严隽珏 杨威生 翟鹏济 唐孝威 |
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| 作者单位： | (1)北京大学物理系; (2)北京大学重离子物理研究所; (3)中国科学院高能物理研究所 |
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| 摘 要： | 用扫描隧道显微镜研究了530keV—4.5MeV Au离子轰击高定向石墨所产生的表面孤立损伤，并对表面小丘状损伤的线度进行了测量和统计．利用非线性损伤的热峰模型对重离子轰击石墨表面损伤的线度进行了计算，得到了与实验数据较为符合的理论结果．并对重离子轰击石墨表面损伤的产生机理作了探讨．
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| 关 键 词： | STM 离子轰击 表面损伤 材料改性 石墨 |
| 收稿时间： | 1/2/1997 12:00:00 AM |
SCANNING TUNNELING MICROSCOPIC OBSERVATION OF GRAPHITE SURFACE DAMAGE INDUCED BY GOLD IONS BOMBARDMENT(Ⅱ) |
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| WANG YU-GANG,KANG YI-XIU,ZHAO WEI-JIANG,YAN SHA,YAN JUN-JUE,YANG WEI-SHENG,ZAI PENG-JI and TANG XIAO-WEI.SCANNING TUNNELING MICROSCOPIC OBSERVATION OF GRAPHITE SURFACE DAMAGE INDUCED BY GOLD IONS BOMBARDMENT(Ⅱ)[J].Acta Physica Sinica,1997,46(10):1965-1971. |
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| Authors: | WANG YU-GANG KANG YI-XIU ZHAO WEI-JIANG YAN SHA YAN JUN-JUE YANG WEI-SHENG ZAI PENG-JI and TANG XIAO-WEI |
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| Abstract: | The individual damage on high oriented pyrolytic graphite surface induced by gold ions of 530keV—4.5MeV was studied with scanning tunneling microscope. The hillock-like damage was observed and measured and then the average diameters of the hillocks were obtained. In terms of a modified nonlinear thermal spike model, the diameters of the damage were calculated and the results fit well with the experimental data. The possible mechanism of damage formation is discussed. |
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