Electron transport through monovalent atomic wires
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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5
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Physical Review B, Volume 69, issue 12, pp. 1-5
Abstract
Using a first-principles density-functional method we model electron transport through linear chains of monovalent atoms between two bulk electrodes. For noble-metal chains the transport resembles that for free electrons over a potential barrier whereas for alkali-metal chains resonance states at the chain determine the conductance. As a result, the conductance for noble-metal chains is close to one quantum of conductance, and it oscillates moderately so that an even number of chain atoms yields a higher value than an odd number. The conductance oscillations are large for alkali-metal chains and their phase is opposite to that of noble-metal chains.Description
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Lee, Y J, Brandbyge, M, Puska, M, Taylor, J, Stokbro, K & Nieminen, R 2004, 'Electron transport through monovalent atomic wires', Physical Review B, vol. 69, no. 12, 125409, pp. 1-5. https://doi.org/10.1103/PhysRevB.69.125409