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Effects of phase-breaking scattering on the thermopower of molecular systems

机译:分相散射对分子系统热功率的影响

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摘要

We study the effects of elastic and inelastic scattering on the thermoelectric transport properties of molecular systems. These systems can exhibit high thermopower due to resonant transmission through molecular orbitals. We focus on systems which exhibit suppressed conductance near transmission antiresonances due to quantum interference. For coherent electronic transport, these antiresonances also lead to very high thermopower. We find that elastic and inelastic scattering reduces the thermopower and that this reduction is more severe for larger molecules and for molecules which are more weakly coupled to the leads.
机译:我们研究了弹性和非弹性散射对分子系统热电传输性质的影响。这些系统由于通过分子轨道的共振传输而具有很高的热功率。我们专注于由于量子干扰而在传输反谐振附近表现出抑制电导的系统。对于相干的电子传输,这些反共振也会导致很高的热功率。我们发现弹性和非弹性散射会降低热功率,并且对于较大的分子以及与引线耦合较弱的分子,这种降低更为严重。

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