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Attenuation of Conductance in Cobalt Extended Metal Atom Chains

Abstract:

Density functional theory, in conjunction with nonequilibrium Green's functions, is used to explore the attenuation of the resistance of Co x wires along the series Co 3(dpa) 4(NCS) 2, Co 5(tpda) 4(NCS) 2, and Co 7(teptra) 4(NCS) 2. At very low bias (0 < V < 25 mV) the conductance, G, decreases in the order G(Co 3) > G(Co 5) > G(Co 7), consistent with experiment and with an anticipated inverse relationship between conductance and chain length. At higher voltages, however, the curr...

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Publication status:
Published

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Publisher copy:
10.1021/jp304807w

Authors


Georgiev, VP More by this author
Sameera, WMC More by this author
McGrady, JE More by this author
Journal:
JOURNAL OF PHYSICAL CHEMISTRY C
Volume:
116
Issue:
38
Pages:
20163-20172
Publication date:
2012-09-27
DOI:
EISSN:
1932-7455
ISSN:
1932-7447
URN:
uuid:4768d3b2-ec73-4edb-a555-4f47cc555d5f
Source identifiers:
354648
Local pid:
pubs:354648
Language:
English

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