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
收藏
页码：9283 / 9288
页数：6
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