Quantum Effects in Carbon Nanotubes: Effects of Curvature, Finite-Length and Topological Property
Quantum Effects in Carbon Nanotubes: Effects of Curvature, Finite-Length and Topological Property
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碳纳米管中的量子效应：曲率、有限长度和拓扑性质的影响
DOI：
10.1007/978-981-19-1201-6_7
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Izumida Wataru
中科院分区：
文献类型：
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作者：
Suzuki Yuta;Kitagawa Yuma;Tezuka Shin-ichiro;Akera Hiroshi;大信田丈志，大槻道夫，後藤晋，松本剛;Riku Masui and Keisuke Totsuka;Izumida Wataru
本文综述了单壁碳纳米管中低能电子现象中的量子效应。这些效应在纳米管杂化体系的量子输运现象中起主导作用。由于波矢量在周长方向上的离散性，纳米管的手性可以是金属性质或半导体性质。纳米管表面的曲率引起了金属纳米管的能隙和自旋轨道相互作用。纳米管长度的有限性导致了能级的离散化。间隙中边缘状态的体边对应揭示了纳米管作为拓扑物质的另一个特征。
In this article, quantum effects in low energy electronic phenomena in the single-wall carbon nanotubes are overviewed based on our recent theoretical studies. These effects play dominant roles in the quantum transport phenomena in the nanotube hybrid systems. The nanotube can be metallic or semiconducting depending on its chirality because of the discretization of wavevector in circumference direction. The curvature of nanotube surface induces the energy gap in the metallic nanotubes and spin-orbit interaction. Finiteness of the nanotube length leads to the discretization of energy levels. Bulk-edge correspondence for edge states in the gap reveals another feature of the nanotubes as topological matters.