Observation of HCI-induced nanostructures with a scanning probe microscope

被引：14

作者：

Tona, Masahide ^{[1
,2
]}

Watanabe, Hirofumi ^{[1
,2
]}

Takahashi, Satoshi ^{[1
]}

Fujita, Yuso ^{[1
]}

Abe, Takashi ^{[1
]}

Jian, Sun ^{[1
]}

Nakamura, Nobuyuki ^{[1
]}

Yoshiyasu, Nobuo ^{[1
]}

Yamada, Chikashi ^{[1
]}

Sakurai, Makoto ^{[3
]}

Ohtani, Shunsuke ^{[1
,2
]}

机构：

[1] Univ Electrocommun, Inst Laser Sci, Dept Appl Phys & Chem, Chofu, Tokyo 1828585, Japan

[2] Japan Sc & Technol Agcy, CREST, Chofu, Tokyo 1828585, Japan

[3] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan

来源：

HCI 2006: 13TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF HIGHLY CHARGED IONS | 2007年 / 58卷

基金：

日本科学技术振兴机构;

关键词：

D O I：

10.1088/1742-6596/58/1/074

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present scanning tunneling microscope (STM) images, atomically resolved, of the nanostructures on various kinds of surfaces bombarded with highly charged ions (HCIs). In the STM image of a highly oriented pyrolytic graphite surface (Xe29+-impact), a protrusion structure was observed with root 3 x root 3 R30 degrees surface reconstruction around the impact site. A crater-like structure was formed on a Si (111)-(7 x 7) surface by an I50+-HCI impact. An atomic image of similar to 0.1 nm in height was also observed around the missing topmost layers of the crater. In the case of a TiO2 (1 1 0) surface, a typical nanostructure induced by a single I51+-HCI impact, relatively larger crater structure than that on the Si surface was observed; the height (similar to 1 nm) was higher than the atomic step of the TiO2(110)-(1 x 1) surface (similar to 0.3 nm) and the depth reached at least 1.5 nm. This implies that the degree of the HCI-radiation effect on the TiO2 surface is higher than that of the Si(111) case.

引用

页码：331 / +

页数：2

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