摘要
用扫描隧道显微镜研究了５３０ｋｅＶ—４５ＭｅＶＡｕ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．
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.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1997年第10期1965-1971,共7页
Acta Physica Sinica
基金
国家自然科学青年基金
