Quantum tunneling through graphene nanorings

被引：35

作者：

Wu, Zhenhua ^{[1
]}

Zhang, Z. Z. ^{[1
]}

Chang, Kai ^{[1
]}

Peeters, F. M. ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, SKLSM, Beijing 100083, Peoples R China

[2] Univ Antwerp, Dept Phys, B-2020 Antwerp, Belgium

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 18期

关键词：

RINGS;

D O I：

10.1088/0957-4484/21/18/185201

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We investigate theoretically quantum transport through graphene nanorings in the presence of a perpendicular magnetic field. Our theoretical results demonstrate that the graphene nanorings behave like a resonant tunneling device, contrary to the Aharonov-Bohm oscillations found in conventional semiconductor rings. The resonant tunneling can be tuned by the Fermi energy, the size of the central part of the graphene nanorings and the external magnetic field.

引用

页数：5

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