单个铁原子在重构复合超导体 V3Si 上诱导的 Yu-Shiba-Rusinov 态

IF 2.1 4区 化学 Q3 CHEMISTRY, PHYSICAL
Bastian Noßmann , Zuodong Yu , Ankur Das , Stefan Schulte , Nicolas Néel , Chien-Te Wu , Stefan Kirchner , Jörg Kröger
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引用次数: 0

摘要

A15 复合超导体 V3Si(100)的重构表面可能是由块状杂质的偏析诱发的,它是研究由单个铁原子诱发的 Yu-Shiba-Rusinov 状态对吸附位点的依赖性的平台。它们的数量、能量和电子-空穴不对称性随着铁原子的原子环境而强烈变化。这些变化表明,在与基底库珀对的交换耦合中,不同的铁 d 轨道处于活跃状态。空间分辨光谱法显示 Yu-Shiba-Rusinov 状态的衰变长度很短,这表明束缚态的散射过程具有三维特征。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Yu–Shiba–Rusinov states induced by single Fe atoms on reconstructed compound superconductor V3Si

Yu–Shiba–Rusinov states induced by single Fe atoms on reconstructed compound superconductor V3Si

Reconstructed surfaces of the A15-compound superconductor V3Si(100) that are possibly induced by the segregation of bulk impurities serve as platforms to study the dependence of Yu–Shiba–Rusinov states induced by a single Fe atom on the adsorption site. Their number, energy and electron–hole asymmetry vary strongly with the atomic environment of the Fe atom. These variations are indicative of different Fe d-orbitals being active in the site-dependent exchange coupling with the substrate Cooper pairs. Spatially resolved spectroscopy gives rise to a short decay length of the Yu–Shiba–Rusinov states and thereby suggests the three-dimensional character of the scattering process underlying the bound states.

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来源期刊
Surface Science
Surface Science 化学-物理:凝聚态物理
CiteScore
3.30
自引率
5.30%
发文量
137
审稿时长
25 days
期刊介绍: Surface Science is devoted to elucidating the fundamental aspects of chemistry and physics occurring at a wide range of surfaces and interfaces and to disseminating this knowledge fast. The journal welcomes a broad spectrum of topics, including but not limited to: • model systems (e.g. in Ultra High Vacuum) under well-controlled reactive conditions • nanoscale science and engineering, including manipulation of matter at the atomic/molecular scale and assembly phenomena • reactivity of surfaces as related to various applied areas including heterogeneous catalysis, chemistry at electrified interfaces, and semiconductors functionalization • phenomena at interfaces relevant to energy storage and conversion, and fuels production and utilization • surface reactivity for environmental protection and pollution remediation • interactions at surfaces of soft matter, including polymers and biomaterials. Both experimental and theoretical work, including modeling, is within the scope of the journal. Work published in Surface Science reaches a wide readership, from chemistry and physics to biology and materials science and engineering, providing an excellent forum for cross-fertilization of ideas and broad dissemination of scientific discoveries.
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