TITLE

Spin-filtering transport and switching effect of MnCu single-molecule magnet

AUTHOR(S)
Hao, H.; Zheng, X. H.; Dai, Z. X.; Zeng, Z.
PUB. DATE
May 2010
SOURCE
Applied Physics Letters;5/10/2010, Vol. 96 Issue 19, p192112
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Electron transport of a single-molecule magnet (SMM) device has been investigated using the first-principles calculations. The SMM based device is constructed by a SMM MnCu [MnCuCl(5-Br-sap)2(MeOH)] bridged between semi-infinite Au(100) electrodes with thiol groups connecting the molecule and the gold electrodes. Our results exhibit crucial features of spin filtering and Kondo resonance. The spin filtering remains robust, whereas the Kondo resonance highly depends on the contact geometry. Specifically, this Kondo resonance can be switched on or off by changing the contact distance. The mechanisms of these features are formulated in details.
ACCESSION #
50510753

 

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