Modification of HOPG Surface on Irradiation by Highly Charged Ar11+ and Xe26+ Ions Investigated by SEM, ESR, SQUID, and Raman Measurements

被引：4

作者：

Liu, Shengjin ^{[1
]}

Sakurai, Makoto ^{[1
]}

Zhang, Weimin ^{[1
]}

Asakura, Ken ^{[1
]}

Iida, Naoyuki ^{[1
]}

Sakurai, Takahiro ^{[1
]}

Ohta, Hitoshi ^{[1
]}

Tona, Masahide ^{[2
]}

Terui, Toshifumi ^{[3
]}

Wang, Tieshan ^{[4
]}

Wang, Y. Y. ^{[5
]}

Xiao, G. Q. ^{[5
]}

机构：

[1] Kobe Univ, Dept Phys, 1-1 Rokkodai, Kobe, Hyogo 6578501, Japan

[2] Kobe Univ, Dept Chem, Kobe, Hyogo 6578501, Japan

[3] Natl Inst Informat & Communicat Technol, Kobe, Hyogo 6512492, Japan

[4] Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China

[5] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China

来源：

E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY | 2011年 / 9卷

关键词：

Highly charged ion; HOPG; SEM; Raman; ESR; SQUID; Nanomodification; Irradiation Contrast;

D O I：

10.1380/ejssnt.2011.241

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Highly oriented pyrolytic graphite (HOPG) samples were irradiated by highly charged ions Ar11+ and Xe26+. Scanning electron microscopy (SEM), electron spin resonance (ESR), a superconducting quantum interference device (SQUID), and Raman spectroscopy were used to investigate the effect of this irradiation. SEM observations revealed that the contrast between irradiated and unirradiated regions became discernible at a fluence of about 10(14) cm(-2). On the other hand, for samples irradiated by Ar+ ions, a fluence of the order of 10(15) cm(-2) was necessary to obtain a similar contrast to that obtained by Ar11+ ion irradiation. This demonstrates that highly charged ions effectively enhance modification of solid surfaces. Furthermore, the ESR and SQUID measurements revealed the formation of defects and magnetization of the irradiated surface. Raman measurements were also performed to investigate the structural transformation at different fluences.

引用

页码：241 / 246

页数：6