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Efficient spin filter based on FeN(4) complexes between carbon nanotube electrodes.
MedLine Citation:
PMID:  22652524     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We present a theoretical study to explore the spin transport properties of FeN(4) complexes sandwiched between two armchair (5, 5) carbon nanotube (CNT) electrodes. The ab initio modeling is performed by combining the spin-dependent density functional theory with nonequilibrium Green's function formalism. The calculated results clearly demonstrate that the transport properties of FeN(4) complexes are sensitive to the contact configuration. Near the Fermi level the conductance through three examined junctions is mainly governed by the spin-up electrons. The FeN(4) complex coupled to CNT electrodes with the π-type contact conjugation can act as a nearly perfect spin filter, and its spin filter efficiency is up to 98.0%. Our theoretical results demonstrate that FeN(4) complexes are promising for future molecular spintronics devices.
Authors:
Jing Huang; Weiyi Wang; Shangfeng Yang; Qunxiang Li; Jinlong Yang
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Publication Detail:
Type:  Journal Article     Date:  2012-05-31
Journal Detail:
Title:  Nanotechnology     Volume:  23     ISSN:  1361-6528     ISO Abbreviation:  Nanotechnology     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-06-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  England    
Other Details:
Languages:  eng     Pagination:  255202     Citation Subset:  IM    
Affiliation:
School of Materials and Chemical Engineering, Anhui University of Architecture, Hefei, Anhui 230022, People's Republic of China. Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
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