Effects of graphene defects on Co cluster nucleation and intercalation

doi:10.1088/1674-1056/23/8/088108

中国物理B ›› 2014, Vol. 23 ›› Issue (8): 88108-088108.doi: 10.1088/1674-1056/23/8/088108

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Effects of graphene defects on Co cluster nucleation and intercalation

徐文焱^{a b}, 黄立^{a b}, 阙炎德^{a b}, 林晓^{b a}, 王业亮^{a b}, 杜世萱^{a b}, 高鸿钧^{a b}

a Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
b University of Chinese Academy of Sciences, Beijing 100049, China

收稿日期:2014-04-09 修回日期:2014-05-04 出版日期:2014-08-15 发布日期:2014-08-15
基金资助:
Project supported by Funds from the Ministry of Science and Technology of China (Grant Nos. 2013CBA01600 and 2011CB932700), the National Natural Science Foundation of China (Grant Nos. 61222112 and 11334006), and the Funds from the Chinese Academy of Sciences.

Effects of graphene defects on Co cluster nucleation and intercalation

Xu Wen-Yan (徐文焱)^{a b}, Huang Li (黄立)^{a b}, Que Yan-De (阙炎德)^{a b}, Lin Xiao (林晓)^{b a}, Wang Ye-Liang (王业亮)^{a b}, Du Shi-Xuan (杜世萱)^{a b}, Gao Hong-Jun (高鸿钧)^{a b}

a Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
b University of Chinese Academy of Sciences, Beijing 100049, China

Received:2014-04-09 Revised:2014-05-04 Online:2014-08-15 Published:2014-08-15
Contact: Lin Xiao, Wang Ye-Liang, Gao Hong-Jun E-mail:xlin@ucas.ac.cn;ylwang@iphy.ac.cn;hjgao@iphy.ac.cn
Supported by:
Project supported by Funds from the Ministry of Science and Technology of China (Grant Nos. 2013CBA01600 and 2011CB932700), the National Natural Science Foundation of China (Grant Nos. 61222112 and 11334006), and the Funds from the Chinese Academy of Sciences.

摘要/Abstract

摘要： Four kinds of defects are observed in graphene grown on Ru (0001) surfaces. After cobalt deposition at room temperature, the cobalt nanoclusters are preferentially located at the defect position. By annealing at 530 ℃, cobalt atoms intercalate at the interface of Graphene/Ru (0001) through the defects. Further deposition and annealing increase the sizes of intercalated Co islands. This provides a method of controlling the arrangement of cobalt nanoclusters and also the density and the sizes of intercalated cobalt islands, which would find potential applications in catalysis industries, magnetism storage, and magnetism control in future information technology.

关键词: graphene, defects, cobalt, intercalation, scanning tunneling microscopy

Abstract: Four kinds of defects are observed in graphene grown on Ru (0001) surfaces. After cobalt deposition at room temperature, the cobalt nanoclusters are preferentially located at the defect position. By annealing at 530 ℃, cobalt atoms intercalate at the interface of Graphene/Ru (0001) through the defects. Further deposition and annealing increase the sizes of intercalated Co islands. This provides a method of controlling the arrangement of cobalt nanoclusters and also the density and the sizes of intercalated cobalt islands, which would find potential applications in catalysis industries, magnetism storage, and magnetism control in future information technology.

Key words: graphene, defects, cobalt, intercalation, scanning tunneling microscopy

中图分类号: (Graphene)

81.05.ue

87.64.Dz (Scanning tunneling and atomic force microscopy) 68.55.Ln (Defects and impurities: doping, implantation, distribution, concentration, etc.) 68.55.at (Other materials)

徐文焱, 黄立, 阙炎德, 林晓, 王业亮, 杜世萱, 高鸿钧. Effects of graphene defects on Co cluster nucleation and intercalation[J]. 中国物理B, 2014, 23(8): 88108-088108.

Xu Wen-Yan (徐文焱), Huang Li (黄立), Que Yan-De (阙炎德), Lin Xiao (林晓), Wang Ye-Liang (王业亮), Du Shi-Xuan (杜世萱), Gao Hong-Jun (高鸿钧). Effects of graphene defects on Co cluster nucleation and intercalation[J]. Chin. Phys. B, 2014, 23(8): 88108-088108.

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Effects of graphene defects on Co cluster nucleation and intercalation

Effects of graphene defects on Co cluster nucleation and intercalation

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