NbSe2上CrCl3的一维边缘定域YSR态

IF 5.4 1区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

npj Quantum Materials Pub Date : 2025-05-27 DOI:10.1038/s41535-025-00759-2

Jan P. Cuperus, Arnold H. Kole, Andrés R. Botello-Méndez, Zeila Zanolli, Daniel Vanmaekelbergh, Ingmar Swart

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引用次数: 0

摘要

磁体/超导混合系统是实现拓扑超导的一个平台。研究了铁磁单层CrCl3和超导NbSe2的异质结构。利用低温扫描隧道显微镜，我们观察到了位于CrCl3岛边缘的拓扑平凡的Yu-Shiba-Rusinov （YSR）态。DFT模拟表明，边缘的Cr原子在EF附近有一个增强的d轨道DOS。这导致这些原子和底物之间的交换耦合，使YSR态的边缘定位合理化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

One dimensional edge localized YSR states in CrCl3 on NbSe2

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One dimensional edge localized YSR states in CrCl3 on NbSe2

Magnet/superconductor hybrid systems have been put forward as a platform for realizing topological superconductivity. We investigated the heterostructure of ferromagnetic monolayer CrCl₃ and superconducting NbSe₂. Using low-temperature scanning tunneling microscopy, we observe topologically trivial Yu-Shiba-Rusinov (YSR) states localized at the edge of CrCl₃ islands. DFT simulations reveal that the Cr atoms at the edge have an enhanced d-orbital DOS close to E_F. This leads to an exchange coupling between these atoms and the substrate that rationalizes the edge-localization of the YSR states.

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来源期刊

npj Quantum Materials Materials Science-Electronic, Optical and Magnetic Materials

CiteScore

10.60

自引率

3.50%

发文量

107

审稿时长

6 weeks

期刊介绍： npj Quantum Materials is an open access journal that publishes works that significantly advance the understanding of quantum materials, including their fundamental properties, fabrication and applications.