Scanning tunneling microscope study of electrical transport properties of nanoscale Schottky contacts between manganese silicide nanostructures and Si(111)
Scanning tunneling microscope study of electrical transport properties of nanoscale Schottky contacts between manganese silicide nanostructures and Si(111)
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扫描隧道显微镜研究硅化锰纳米结构与Si(111)之间纳米级肖特基接触的电传输特性
DOI:
10.1063/1.4816962
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发表时间:
2013-07
影响因子:
4
通讯作者:
Xu Li
中科院分区:
文献类型:
--
作者:
Xiao-Yong Liu;Zhi-Qiang Zou;Li-Min Sun;Xu Li
The electrical transport properties of three types of manganese silicide nanocontacts, including tabular island/Si(111), nanowire/Si(111), and three-dimensional island/Si(111), are investigated by a scanning tunneling microscope with tip contacting the silicide islands. All current-voltage curves measured on the islands exhibit Schottky diode-like rectifying behaviors. Compared to the macroscopic counterparts, the nanocontacts display low Schottky barrier heights and extremely large ideality factors. The interface structure of the nanocontacts has a significant influence on the current at forward bias. This influence can be attributed to the leakage current associated with the conductive dislocations induced by the lattice mismatch between the islands and the substrate.
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