Regular conductance fluctuations indicative of quasi-ballistic transport in bilayer graphene

被引：23

作者：

Ujiie, Y. ^{[1
]}

Motooka, S. ^{[1
]}

Morimoto, T. ^{[2
]}

Aoki, N. ^{[1
]}

Ferry, D. K. ^{[3
,4
]}

Bird, J. P. ^{[1
,5
]}

Ochiai, Y. ^{[1
]}

机构：

[1] Chiba Univ, Grad Sch Adv Integrat Sci, Inage Ku, Chiba 2638522, Japan

[2] RIKEN, Adv Device Lab, Wako, Saitama 3518522, Japan

[3] Arizona State Univ, Dept Elect Engn, Tempe, AZ 85287 USA

[4] Arizona State Univ, Ctr Solid State Elect Res, Tempe, AZ 85287 USA

[5] SUNY Buffalo, Dept Elect Engn, Buffalo, NY 14260 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 38期

基金：

日本学术振兴会;

关键词：

QUANTUM DOTS; MAGNETIC-FIELD;

D O I：

10.1088/0953-8984/21/38/382202

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Quasi-periodic conductance fluctuations are observed in the low-temperature magneto-conductance of a bilayer graphene sample. The quasi-periodic nature of the fluctuations is confirmed by their Fourier power spectrum, which consists of just a small number of dominant frequency components. From an experimental study of these features, which are highly reminiscent of those reported previously for ballistic semiconductor quantum dots, we suggest that they are associated with the formation of an open quantum dot in the submicron graphene sample.

引用

页数：4