%0 Journal Article
%A Maciá Barber, Enrique Alfonso
%A Triozon, François
%A Roche, Stephan
%T Contact-dependent effects and tunneling currents in DNA molecules
%D 2005
%@ 1098-0121
%U https://hdl.handle.net/20.500.14352/52109
%X We report on theoretical results about contact-dependent effects and tunneling currents through DNA molecules. A tetranucleotide PolyGACT chain, connected in between metallic contacts, is studied as a generic case, and compared to other periodic sequences such as PolyAT or PolyGC. Remarkable resonance conditions are analytically derived, indicating that a strong coupling does not always result in a larger conductance. This result is properly illustrated by considering intrinsic features of bias-dependent tunneling currents in the coherent regime.
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