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arXiv 1209.5690cond-mat.mes-hallphysics.chem-ph
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利用局域电场对单分子电荷态进行门控

Gating the charge state of a single molecule by local electric fields

Isabel Fernández-Torrente, Dagmar Kreikemeyer-Lorenzo, Anna Strozecka, Katharina J. Franke, Jose Ignacio Pascual

摘要:

电子受体分子TCNQ被发现在两个不同的整数电荷状态嵌入到单层的电荷转移复合物的金表面时。扫描调谐光谱测量通过零偏近藤共振的存在/不存在来识别这些状态。增加(尖端诱导的)电场允许我们可逆地诱导TCNQ物种分别从它们的阴离子或中性基态氧化/还原。我们表明,不同的基态是由底层表面电位的轻微变化引起的,这里所示为三端器件的栅极。

英文摘要:

The electron acceptor molecule TCNQ is found in either of two distinct integer charge states when embedded into a monolayer of a charge transfer-complex on a gold surface. Scanning tun- neling spectroscopy measurements identify these states through the presence/absence of a zero-bias Kondo resonance. Increasing the (tip-induced) electric field allows us to reversibly induce the ox- idation/reduction of TCNQ species from their anionic or neutral ground state, respectively. We show that the different ground states arise from slight variations in the underlying surface potential, pictured here as the gate of a three-terminal device.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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