arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1202.0615cond-mat.mes-hall
收藏

金属/二维碳结的电输运:边接触与边接触

Electrical transport across metal/two-dimensional carbon junctions: Edge versus side contacts

Yihong Wu, Ying Wang, Jiayi Wang, Miao Zhou, Aihua Zhang, Chun Zhang, Yanjing Yang, Younan Hua, Baoxi Xu

摘要:

金属/二维碳结的特征在于使用纳米探针在一个真空环境中。在边缘接触和侧面接触之间的微分电导(dI/dV)的偏置电压(V)依赖性中发现了显著差异;前者表现出明显的线性关系(即,dI/dV \propto V),而后者的特征在于非线性依赖性,dI/dV \propto V 3/2。理论计算证实了实验结果,这是由于所研究的碳材料的稳健的二维性质。我们的工作证明了接触几何形状在石墨烯基电子器件中的重要性。

英文摘要:

Metal/two-dimensional carbon junctions are characterized by using a nanoprobe in an ultrahigh vacuum environment. Significant differences were found in bias voltage (V) dependence of differential conductance (dI/dV) between edge- and side-contact; the former exhibits a clear linear relationship (i.e., dI/dV \propto V), whereas the latter is characterized by a nonlinear dependence, dI/dV \propto V3/2. Theoretical calculations confirm the experimental results, which are due to the robust two-dimensional nature of the carbon materials under study. Our work demonstrates the importance of contact geometry in graphene-based electronic devices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑