| 快重离子在石墨中引起表面及体径迹的STM研究 |
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| 引用本文： | 刘杰,R.Neumann,C.Trautmann,C.Müller,侯明东,金运范.快重离子在石墨中引起表面及体径迹的STM研究[J].核技术,2002,25(7):501-505. |
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| 作者姓名： | 刘杰 R.Neumann C.Trautmann C.Müller 侯明东 金运范 |
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| 作者单位： | 1. 中国科学院近代物理研究所,兰州,730000
2. Gesellschaft für Schwerionenforschung(GSI),Planckstr.1,64291Darmstadt,Germany |
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| 基金项目： | 国家自然科学基金 (1 0 0 750 64)资助项目 |
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| 摘 要： | 用多种快重离子辐照高定向石墨（HOPG），借助扫描隧道显微镜（STM）系统地研究了表面及体内缺陷，结果表明，离子在表面及解理面上都形成了小丘状的缺陷，且在表面较容易形成，可以用非连续损伤径迹结构来对其进行解释。
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| 关 键 词： | 重离子 高定向石墨 扫描隧道显微镜 辐射损伤 径迹 |
| 修稿时间： | 2002年1月29日 |
Surface and bulk tracks induced by swift heavy ions in graphite studied by STM |
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| R.Neumann,C.Trautmann.Surface and bulk tracks induced by swift heavy ions in graphite studied by STM[J].Nuclear Techniques,2002,25(7):501-505. |
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| Authors: | RNeumann CTrautmann |
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| Abstract: | Damage on surface and in bulk of highly oriented pyrolytic graphite (HOPG) induced by variety of heavy ions was studied by scanning tunneling microscopy (STM). Hillocks rather than hollows were observed either on the original sample surfaces or on the cleaved surfaces. Compared to the original surface, the probability of track formation was significantly reduced in the deeper bulk layers. This could be understood by assuming a morphology consisting of a discontinuous sequence of damage segments instead of a homogeneous cylinder. |
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| Keywords: | Heavy ions HOPG STM Radiation damage Tracks |
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