Electronic transport properties of helical macromolecular chains using dihedral orbital model

被引:0
|
作者
Sun, G. Y. [1 ,2 ]
机构
[1] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China
[2] Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Peoples R China
来源
EUROPEAN PHYSICAL JOURNAL B | 2011年 / 83卷 / 01期
基金
美国国家科学基金会;
关键词
SINGLE DNA-MOLECULES; HANBURY-BROWN; CONDUCTANCE; CHARGE;
D O I
10.1140/epjb/e2011-20275-x
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
By applying the non-equilibrium Green's function method, in combination with the dihedral orbital model, we have theoretically investigated quantum transport properties of organic molecular chains, focusing on the effects of the helical rotation of the chains. The transmission coefficient, the electronic current, as well as the current shot noise were calculated. It was found that the helical rotation modifies the transport properties profoundly. It leads to a diminishing and roughly periodical oscillatory behaviour of both the current and shot noise power.
引用
收藏
页码:77 / 82
页数:6
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