FeTe和全铁基铁磁超导体异质结构中的普遍超导性

IF 19 1区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Hee Taek Yi, Xiong Yao, Deepti Jain, Ying-Ting Chan, An-Hsi Chen, Matthew Brahlek, Kim Kisslinger, Kai Du, Myung-Geun Han, Yimei Zhu, Weida Wu, Sang-Wook Cheong, Seongshik Oh
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引用次数: 0

摘要

铁磁性(FM)和超导性(SC)是两种最著名的宏观量子现象。然而,自然界通常不允许SC和FM在没有显著退化的情况下共存。本文首次引入了由Fe(Te,Se)和Fe3GeTe2组成的全铁基SC/FM异质结构,并表明该体系具有强FM和具有原子尖界面的高温SC。本研究还发现,微量的各种阳离子掺杂剂可以将非超导FeTe薄膜驱动到SC状态。这表明FeTe的基态与SC态如此接近,以至于它可以在各种其他扰动的驱使下进出SC态。总之,这表明fe - te基异质结构为操纵磁性、超导性和拓扑物理提供了独特的机会,为新的超导技术铺平了道路。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Universal Superconductivity in FeTe and All-Iron-Based Ferromagnetic Superconductor Heterostructures

Universal Superconductivity in FeTe and All-Iron-Based Ferromagnetic Superconductor Heterostructures

Universal Superconductivity in FeTe and All-Iron-Based Ferromagnetic Superconductor Heterostructures

Universal Superconductivity in FeTe and All-Iron-Based Ferromagnetic Superconductor Heterostructures

Universal Superconductivity in FeTe and All-Iron-Based Ferromagnetic Superconductor Heterostructures

Ferromagnetism (FM) and superconductivity (SC) are two of the most famous macroscopic quantum phenomena. However, nature normally does not allow SC and FM to coexist without significant degradation. Here, the first fully iron-based SC/FM heterostructures, composed of Fe(Te,Se) and Fe3GeTe2, are introduced, and it is shown that this system exhibits both strong FM and high-temperature SC with an atomically sharp interface. From this study, it is also discovered that minute level of various cationic dopants can drive otherwise non-superconducting FeTe films into a SC state. This suggests that the ground state of FeTe is so close to the SC state that it can be driven in and out of the SC state with various other perturbations. Altogether, this shows that Fe-Te-based heterostructures provide a unique opportunity to manipulate magnetism, superconductivity, and topological physics, paving the way toward new superconducting technologies.

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来源期刊
Advanced Functional Materials
Advanced Functional Materials 工程技术-材料科学:综合
CiteScore
29.50
自引率
4.20%
发文量
2086
审稿时长
2.1 months
期刊介绍: Firmly established as a top-tier materials science journal, Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology every week. Advanced Functional Materials is known for its rapid and fair peer review, quality content, and high impact, making it the first choice of the international materials science community.
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