期刊
APPLIED PHYSICS LETTERS
卷 96, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3327829
关键词
annealing; current density; electrical conductivity; electron-hole recombination; graphene; scanning probe microscopy
资金
- EU GRAND
- ERC grant NANOPOTS
- EPSRC [EP/G042357/1]
- Royal Society
- EPSRC [EP/G042357/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/G042357/1] Funding Source: researchfish
We have used scanning gate microscopy to explore the local conductivity of a current-annealed graphene flake. A map of the local neutrality point (NP) after annealing at low current density exhibits micron-sized inhomogeneities. Broadening of the local e-h transition is also correlated with the inhomogeneity of the NP. Annealing at higher current density reduces the NP inhomogeneity, but we still observe some asymmetry in the e-h conduction. We attribute this to a hole-doped domain close to one of the metal contacts combined with underlying striations in the local NP.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据