Large networks of vertical multi-layer graphenes with morphology-tunable magnetoresistance

被引：33

作者：

Yue, Zengji ^{[1
,2
]}

Levchenko, Igor ^{[2
,3
]}

Kumar, Shailesh ^{[2
,3
]}

Seo, Donghan ^{[2
,3
]}

Wang, Xiaolin ^{[1
]}

Dou, Shixue ^{[1
]}

Ostrikov, Kostya ^{[1
,2
,3
]}

机构：

[1] Univ Wollongong, Fac Engn, ISEM, Wollongong, NSW 2522, Australia

[2] CSIRO Mat Sci & Engn, PNCA, Lindfield, NSW 2070, Australia

[3] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

来源：

NANOSCALE | 2013年 / 5卷 / 19期

基金：

澳大利亚研究理事会;

关键词：

ELECTRONIC-PROPERTIES; REACTIVE PLASMAS; LAYER GRAPHENE;

D O I：

10.1039/c3nr00550j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on the comparative study of magnetotransport properties of large-area vertical few-layer graphene networks with different morphologies, measured in a strong (up to 10 T) magnetic field over a wide temperature range. The petal-like and tree-like graphene networks grown by a plasma enhanced CVD process on a thin (500 nm) silicon oxide layer supported by a silicon wafer demonstrate a significant difference in the resistance-magnetic field dependencies at temperatures ranging from 2 to 200 K. This behaviour is explained in terms of the effect of electron scattering at ultra-long reactive edges and ultra-dense boundaries of the graphene nanowalls. Our results pave a way towards three-dimensional vertical graphene-based magnetoelectronic nanodevices with morphology-tuneable anisotropic magnetic properties.

引用

页码：9283 / 9288

页数：6

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