Quantum interference in carbon-nanotube electron resonators

被引：43

作者：

Jiang, J ^{[1
]}

Dong, JM

Xing, DY

机构：

[1] Nanjing Univ, Natl Lab Solid State Microstruct, Grp Computat Condensed Matter Phys, Nanjing 210093, Peoples R China

[2] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.91.056802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new mechanism is proposed to explain the slow conductance fluctuations in the conductance-gate voltage plot observed in the nanotube electron resonators. It is found that the slow conductance fluctuation is an intrinsic quantum interference phenomenon and exists in all metallic nanotube resonators except zigzag ones. Analytical expressions for both slow and rapid oscillation periods of the conductance fluctuations have been derived, which are well consistent with the existing experiments. It is predicted that the ratio of the slow oscillation period to the rapid one is independent of the gate-voltage efficiency, and determined only by the nanotube length used in experiments.

引用

页数：4

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