Quantum interference induced by nonmagnetic impurities in a single-walled carbon nanotube

被引：12

作者：

Song, HF ^{[1
]}

Zhu, JL ^{[1
]}

Xiong, JJ ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.66.245421

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The scanning tunnelling spectroscopy of a doped single-walled armchair carbon nanotube has been investigated by using the pi-electron tight-binding model. The spatial oscillations arising from quantum interference between the forward and backward electron waves are found in the local density of states. These oscillations are strongly dependent on the geometric arrangement of the relationship between the doped nonmagnetic impurities. Three typical oscillations are predicted and their characteristic features have been studied in detail. It is found that the symmetry and parity of the quasibound states induced by impurities are important to distinguish the oscillation types.

引用

页码：1 / 7

页数：7

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