Observation of Coulomb blockade and ballistic tunneling in graphene single electron transistor
文献类型：期刊论文
| 作者 | Tan, ZB ; Liu, GT ; Lu, L ; Yang, CL |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2012 |
| 卷号 | 55期号:1页码:7 |
| 关键词 | CHARGE |
| ISSN号 | 1674-7348 |
| 通讯作者 | Yang, CL (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Transition metal atom M (M = Cu, Ag, Au) adsorption on CeO2(110), a technologically important catalytic support surface, is investigated with density-functional theory within the DFT + U formalism. A set of model configurations was generated by placing M at three surface sites, viz., on top of an O, an O bridge site, and a Ce bridge site. Prior to DFT optimization, small distortions in selected Ce-O distances were imposed to explore the energetics associated with reduction of Ce4+ to Ce3+ due to charge transfer to Ce during M adsorption. Charge redistribution is confirmed with spin density isosurfaces and site projected density of states. We demonstrate that Cu and Au atoms can be oxidized to Cu2+ and Au2+, although the adsorption energy, E-ads, of Au2+ is less favorable and, unlike Cu2+, it has not been experimentally observed. Oxidation of Ag always results in Ag+. For M adsorption at an O bridge site, E-ads(2NN) > E-ads(3NN) > E-ads(1NN) where NN denotes the nearest neighbor Ce3+ site relative to M. Alternatively, for M adsorption at a Ce bridge site, E-ads(3NN) > E-ads(2NN) > E-ads(1NN). The adsorption behavior of M on CeO2 (110) is compared with M adsorption on CeO2(111). |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10874220]; Chinese Academy of Sciences [KJCX2-YW- W30]; MOST [2011CB932704] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50139]  |
| 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 | Tan, ZB,Liu, GT,Lu, L,et al. Observation of Coulomb blockade and ballistic tunneling in graphene single electron transistor[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(1):7. |
| APA | Tan, ZB,Liu, GT,Lu, L,&Yang, CL.(2012).Observation of Coulomb blockade and ballistic tunneling in graphene single electron transistor.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(1),7. |
| MLA | Tan, ZB,et al."Observation of Coulomb blockade and ballistic tunneling in graphene single electron transistor".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.1(2012):7. |
入库方式： OAI收割
来源：物理研究所
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