Interaction-induced negative differential resistance in asymmetric molecular junctions

doi:10.1063/1.3560474

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	Interaction-induced negative differential resistance in asymmetric molecular junctions
	Leijnse, M.1; Sun, W.1,2; Nielsen, M. Brondsted 3; Hedegard, P.1; Flensberg, K.1
刊名	JOURNAL OF CHEMICAL PHYSICS
	2011-03-14
卷号	134 期号:10
ISSN号	0021-9606
DOI	10.1063/1.3560474
英文摘要	Combining insights from quantum chemistry calculations with master equations, we discuss a mechanism for negative differential resistance (NDR) in molecular junctions, operated in the regime of weak tunnel coupling. The NDR originates from an interplay of orbital spatial asymmetry and strong electron-electron interaction, which causes the molecule to become trapped in a nonconducting state above a voltage threshold. We show how the desired asymmetry can be selectively introduced in individual orbitals in, e.g., oligo(phenyleneethynylene)-type molecules by functionalization with a suitable side group, which is in linear conjugation to one end of the molecule and cross-conjugated to the other end. (C) 2011 American Institute of Physics. [doi:10.1063/1.3560474]
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000288395400010
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/73445]
专题	中国科学院化学研究所
通讯作者	Leijnse, M.
作者单位	1.Univ Copenhagen, Niels Bohr Inst, Nanosci Ctr, DK-2100 Copenhagen O, Denmark 2.Peking Univ, BNLMS, SKLSCSUS, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 3.Univ Copenhagen, Dept Chem, DK-2100 Copenhagen O, Denmark
推荐引用方式 GB/T 7714	Leijnse, M.,Sun, W.,Nielsen, M. Brondsted,et al. Interaction-induced negative differential resistance in asymmetric molecular junctions[J]. JOURNAL OF CHEMICAL PHYSICS,2011,134(10).
APA	Leijnse, M.,Sun, W.,Nielsen, M. Brondsted,Hedegard, P.,&Flensberg, K..(2011).Interaction-induced negative differential resistance in asymmetric molecular junctions.JOURNAL OF CHEMICAL PHYSICS,134(10).
MLA	Leijnse, M.,et al."Interaction-induced negative differential resistance in asymmetric molecular junctions".JOURNAL OF CHEMICAL PHYSICS 134.10(2011).