IMR OpenIR
Negative differential resistance and spin polarization of metal-C6H6 multidecker complexes
S. C. Zhu; K. L. Yao; G. Y. Gao; W. Yao; Y. Ni; L. Peng
2013
Source PublicationJournal of Applied Physics
ISSN0021-8979
Volume113Issue:11
AbstractWe investigate the electronic properties of one-dimensional metal-C6H6 multidecker complexes: chromium(Cr)-benzene(Bz), benzene(Bz)-chromium(Cr)-benzene(Bz)-iron(Fe) wires and Cr(n)Bz(2) (n = 1, 2, 3) and CrBz(2)Fe(m) (m = 1, 2) clusters by applying nonequilibrium Green's functions combined with the density-functional theory. We predict that the ground state of the FeBzCrBzFe cluster is 100% spin-polarized. The density of states shows metallic for the spin-up electrons, while a semiconductor gap merges for the spin-down electrons (half-metallic). It is found that there is 92%-97% spin polarization of the electron transmission for the five sandwich molecular junctions constructed by the multilayer metal-benzene organometallic Cr(n)Bz(2) (n = 1, 2, 3) and CrBz(2)Fe(m) (m = 1, 2) clusters, which coupled to gold electrodes. In deed, these clusters will perform as nearly perfect spin-filters via the electron transport calculations. The current increases with the cluster length and depends on the bias and spin-up current-voltage characteristics for three kinds of sandwich molecular junctions (Bz(2)Cr, BzCrBzFe, and Bz(2)Cr(3)). It also shows robust negative differential resistance behavior, which is closely related with the evolution of the transmission spectrum under applied bias. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4795283]
description.department[zhu, si-cong ; yao, kai-lun ; gao, guo-ying ; yao, wei ; ni, yun ; peng, li] huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. [zhu, si-cong ; yao, kai-lun ; gao, guo-ying ; yao, wei ; ni, yun ; peng, li] huazhong univ sci & technol, wuhan natl high magnet field ctr, wuhan 430074, peoples r china. [yao, kai-lun] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. ; yao, kl (reprint author), huazhong univ sci & technol, sch phys, wuhan 430074, peoples r china. ; klyao@mail.hust.edu.cn
KeywordBenzene Sandwich Clusters Spintronics
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71753
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
S. C. Zhu,K. L. Yao,G. Y. Gao,et al. Negative differential resistance and spin polarization of metal-C6H6 multidecker complexes[J]. Journal of Applied Physics,2013,113(11).
APA S. C. Zhu,K. L. Yao,G. Y. Gao,W. Yao,Y. Ni,&L. Peng.(2013).Negative differential resistance and spin polarization of metal-C6H6 multidecker complexes.Journal of Applied Physics,113(11).
MLA S. C. Zhu,et al."Negative differential resistance and spin polarization of metal-C6H6 multidecker complexes".Journal of Applied Physics 113.11(2013).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[S. C. Zhu]'s Articles
[K. L. Yao]'s Articles
[G. Y. Gao]'s Articles
Baidu academic
Similar articles in Baidu academic
[S. C. Zhu]'s Articles
[K. L. Yao]'s Articles
[G. Y. Gao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[S. C. Zhu]'s Articles
[K. L. Yao]'s Articles
[G. Y. Gao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.