Electronic Transport through Carbon Nanotorus Junctions

• Main Authors: Yeh-Yueh Chou, 周業岳
• Other Authors: Guang-Yu Guo
• Format: Others
• Language: en_US
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/68191781197107830995

碩士 === 國立臺灣大學 === 物理學研究所 === 91 === Electronic properties and transport through realistic nano-junctions made of a carbon nanoring and two metallic leads, have been studied theoretically within the framework of tight-binding electronic structure theory. The conductance is calculated within Landauer theory and real space Green's function formalism. The real space Green's function for these complex systems with thousands of atoms, is calculated by using a recursion scheme. The nano-junctions are also put in various magnetic fields. In this paper, we will present the main results of this theoretical study. In particular, the effects of the magnetic field and the junction atomic structures of the nano-rings, will be emphasized.