Calculation of conductance of quantum point contact in STM

被引：1
|
作者：
Li, QG [1 ]
Xu, HX [1 ]
Li, Y [1 ]
Li, ZY [1 ]
机构：
[1] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Peoples R China
来源：
ACTA PHYSICA SINICA | 2005年 / 54卷 / 11期
关键词：
STM; quantum point contact; quantum conductance;
D O I：
10.7498/aps.54.5251
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The conductance of quantum point contact in scanning tunneling microscope is calculated by modal matching and scattering matrix method. The results show that the conductance of the nano-structure formed during quantum point contact in STM is quantized, which becomes more obvious as the radius and cone angle of the nano-structure decreases. The quantitative behavior could be observed more easily with semiconductors than with metals.
引用
收藏
页码：5251 / 5256
页数：6
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