Anisotropic quantum transport in a network of vertically aligned graphene sheets | |
Huang, J ; Guo, LW ; Li, ZL ; Chen, LL ; Lin, JJ ; Jia, YP ; Lu, W ; Guo, Y ; Chen, XL | |
刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER |
2014 | |
卷号 | 26期号:34 |
关键词 | graphene network magnetoresistance |
ISSN号 | 0953-8984 |
通讯作者 | Huang, J (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Res & Dev Ctr Funct Crystals, POB 603, Beijing 100080, Peoples R China. |
中文摘要 | Novel anisotropic quantum transport was observed in a network of vertically aligned graphene sheets (VAGSs), which can be regarded as composed of plenty of quasi-parallel, nearly intrinsic, freestanding monolayers of graphene. When a magnetic field was perpendicular to most graphene sheets, magnetoresistance (MR) curves showed a weak localization (WL) effect at low field and a maximum value at a critical field ascribed to diffusive boundary scattering. While the magnetic field was parallel to the graphene sheets, the MR maximum disappeared and exhibited a transition from WL to weak antilocalization (WAL) with increasing temperature and magnetic field. Edges as atomically sharp defects are the main elastic and inelastic intervalley scattering sources, and inelastic scattering is ascribed to electron-electron intervalley scattering in the ballistic regime. This is the first time simultaneously observing WL, WAL and diffusive boundary scattering in such a macroscopic three-dimensional graphene system. These indicate the VAGS network is a robust platform for the study of the |
资助信息 | Ministry of Science and Technology of China [2011CB932700, 2013CBA01603]; National Science Foundation of China [51272279, 51072223] |
语种 | 英语 |
公开日期 | 2015-04-14 |
内容类型 | 期刊论文 |
源URL | [http://ir.iphy.ac.cn/handle/311004/59269] |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Huang, J,Guo, LW,Li, ZL,et al. Anisotropic quantum transport in a network of vertically aligned graphene sheets[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2014,26(34). |
APA | Huang, J.,Guo, LW.,Li, ZL.,Chen, LL.,Lin, JJ.,...&Chen, XL.(2014).Anisotropic quantum transport in a network of vertically aligned graphene sheets.JOURNAL OF PHYSICS-CONDENSED MATTER,26(34). |
MLA | Huang, J,et al."Anisotropic quantum transport in a network of vertically aligned graphene sheets".JOURNAL OF PHYSICS-CONDENSED MATTER 26.34(2014). |
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