Band structure effects on one-dimensional resonant tunneling in STM tips made of carbon nanotubes | |
Gao, JH ; Sun, QF ; Xie, XC ; Gao, HJ | |
刊名 | PHYSICAL REVIEW B |
2006 | |
卷号 | 73期号:23 |
关键词 | MICROSCOPE |
ISSN号 | 1098-0121 |
通讯作者 | Gao, JH: Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China. |
中文摘要 | In recent experiments, attempts were made to use carbon nanotubes to replace the normal metal tips in the scanning tunneling microscope (STM), and stable atomic images were observed. However, does the one-dimensional characteristic band structure of the carbon nanotube (CNT) affect the tunneling? We present a theoretical analysis of the one-dimensional resonance tunneling model using the nonequilibrium Green's function method. The results clearly imply that the Van Hove singularities of the CNT probe play an important role in the tunneling process. The resonance curve is quite different from the one with a metallic tip; new peaks and peak splittings are induced. So these characteristics must be considered seriously if one uses a nanoprobe as the STM tip. We also notice that a sharp peak will appear near the first Van Hove singularity, which resembles the Kondo peak. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-17 |
内容类型 | 期刊论文 |
源URL | [http://ir.iphy.ac.cn/handle/311004/34133] |
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 | Gao, JH,Sun, QF,Xie, XC,et al. Band structure effects on one-dimensional resonant tunneling in STM tips made of carbon nanotubes[J]. PHYSICAL REVIEW B,2006,73(23). |
APA | Gao, JH,Sun, QF,Xie, XC,&Gao, HJ.(2006).Band structure effects on one-dimensional resonant tunneling in STM tips made of carbon nanotubes.PHYSICAL REVIEW B,73(23). |
MLA | Gao, JH,et al."Band structure effects on one-dimensional resonant tunneling in STM tips made of carbon nanotubes".PHYSICAL REVIEW B 73.23(2006). |
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