Coherent electron transport in a helical nanotube | |
Liang, GH; Wang, YL; Du, L; Jiang, H3,3; Kang, GZ; Zong, HS | |
刊名 | PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES |
2016 | |
卷号 | 83页码:246-255 |
关键词 | Thin-layer quantization CARBON NANOTUBES Quasi bound state QUANTUM-MECHANICS Transport of double-degenerate mode STATES CONDUCTION PARTICLE SILICON |
DOI | http://dx.doi.org/10.1016/j.physe.2016.05.007 |
英文摘要 | The quantum dynamics of carriers bound to helical tube surfaces is investigated in a thin-layer quantization scheme. By numerically solving the open-boundary Schrodinger equation in curvilinear coordinates, geometric effect on the coherent transmission spectra is analysed in the case of single propagating mode as well as multimode. It is shown that, the coiling endows the helical nanotube with different transport properties from a bent cylindrical surface. Fano resonance appears as a purely geometric effect in the conductance, the corresponding energy of quasibound state is obviously influenced by the torsion and length of the nanotube. We also find new plateaus in the conductance. The transport of double-degenerate mode in this geometry is reminiscent of the Zeeman coupling between the magnetic field and spin angular momentum in quasi-one-dimensional structure. (C) 2016 Elsevier B.V. All rights reserved. |
学科主题 | Science & Technology - Other Topics ; Physics |
语种 | 英语 |
资助机构 | National Natural Science Foundation of China [11274166, 11275097, 11475085, 11535005] |
内容类型 | 期刊论文 |
源URL | [http://ir.itp.ac.cn/handle/311006/23063] |
专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
作者单位 | 1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China 2.Linyi Univ, Sch Sci, Linyi 276005, Peoples R China 3.[Wang, Yong-Long 4.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 5.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China 6.Linyi Univ, Inst Condensed Matter Phys, Linyi 276005, Peoples R China 7.[Liang, Guo-Hua 8.Wang, Yong-Long 9.Du, Long 10.Jiang, Hua |
推荐引用方式 GB/T 7714 | Liang, GH,Wang, YL,Du, L,et al. Coherent electron transport in a helical nanotube[J]. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES,2016,83:246-255. |
APA | Liang, GH,Wang, YL,Du, L,Jiang, H,Kang, GZ,&Zong, HS.(2016).Coherent electron transport in a helical nanotube.PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES,83,246-255. |
MLA | Liang, GH,et al."Coherent electron transport in a helical nanotube".PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES 83(2016):246-255. |
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