Molecular dynamics simulation of latent track formation in bilayer graphene

IEICE Electronics Express

Hongxia Liu¹  Qianqiong Wang¹  Dongdong Zhao¹  Xing Wang¹  Shulong Wang¹  Shupeng Chen¹  Chenxi Fei¹ 

[1] School of Microelectronics, Xidian University

关键词: bilayer graphene;    swift heavy ion;    molecular dynamics;   

DOI  :  10.1587/elex.12.20150771

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(12)Cited-By(1)The damage production induced by swift heavy ion irradiation in bilayer graphene (BLG) is investigated by molecular dynamics method. By given energy to a cylindrical region, the carbon chains even nanoholes can be produced, which depends on the electronic energy loss (dE/dx). For BLG, the minimum value needed to generate defects lies in 5�?7 keV/nm. A low density core and a high density shell structure can be seen while the radii of tracks are obtained. With increasing the values of dE/dx, the track radius is first increasing and then saturates. The analysis of defects indicates that only a small part of the defects can be recombined and the radiation damage in BLG is less severe than in single layer graphene.

【 授权许可】

Unknown