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arXiv 2402.00644cond-mat.supr-concond-mat.mes-hall
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两种用于超导自旋电子学的分子器件

Two molecular devices for superconducting spintronics

Cristina Mier, Alex Fétida, Roberto Robles, Parmenio Boronat, Divya Jyoti, Nicolás Lorente, Laurent Limot, Deung-Jang Choi

AI总结:

本研究制备了两种基于二茂镍、单Fe原子和Pb电极的超导结分子器件,发现Fe配位差异导致微分电导行为不同,分别呈现MAR与隙内态的叠加和干涉效应,展示了原子级分子器件的功能多样性。

摘要:

我们在低温下利用二茂镍分子、单个Fe原子和Pb电极,制备了两种带有超导结的分子器件。研究发现,Fe原子的配位情况会导致两种器件表现出迥异行为:一种器件的微分电导在低偏压下呈现特征峰,源于多重Andreev反射(MAR)与Fe诱导的隙内态的叠加;另一种器件则展现出MAR与隙内态之间的干涉效应,彰显了采用相同组分进行原子级工程设计的器件可实现的功能多样性。

英文摘要:

We create two molecular devices with superconducting junctions, using nickelocene molecules, single Fe atoms, and Pb electrodes at low temperature. We find contrasting behavior based on the coordination of the Fe atom: one device shows low-bias features in its differential conductance due to the superposition of multiple Andreev reflections (MAR) and Fe-induced in-gap states. The other reveals interference between MAR and in-gap states, showcasing the diversity achievable in atomically engineered devices with identical components.

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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