基于au - res2 -石墨烯异质结构的旋转操纵光子自旋霍尔效应

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Surfaces and Interfaces Pub Date : 2025-09-19 DOI:10.1016/j.surfin.2025.107684

Yan Zhan , Gangyun Xu , Yujie Zou , Yi Xu , Yuxuan Lai , Zhihua Song , Cuicui Li , Jun Li , Jian Shi , Xianping Wang

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引用次数: 0

摘要

弱自旋轨道相互作用限制了光子自旋霍尔效应（PSHE）的直接增强和动态控制。在这里，我们通过结合层数调谐和表面等离子体共振，在au - res2 -石墨烯异质结构中实现了一个巨大的PSHE（高达9λ）。至关重要的是，ReS2的强各向异性使得通过旋转调谐的外部PSHE操作成为可能，从而揭示了符号反转现象。这种效应进一步促进了基于环境折射率变化的超灵敏气体传感器（9760.5λ/RIU）。我们的工作通过在单一平台上集成巨大的PSHE，外部控制和高灵敏度，为自旋光子器件提供了一种新的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Rotation manipulating photonic spin Hall effect based on Au-ReS2-graphene heterostructure

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Rotation manipulating photonic spin Hall effect based on Au-ReS2-graphene heterostructure

The weak spin–orbit interaction limits direct enhancement and dynamic control of the photonic spin Hall effect (PSHE). Here, we achieve a giant PSHE (up to 9

λ

) in an Au-

{ReS}_{2}

-graphene heterostructure by combining layer-number tuning and surface plasmon resonance. Crucially, the strong anisotropy of

{ReS}_{2}

enables external PSHE manipulation via rotational tuning, revealing a sign reversal phenomenon. This effect further facilitates an ultrasensitive gas sensor (9760.5

λ

/RIU) based on ambient refractive index changes. Our work provides a new strategy for spin-photonic devices by integrating giant PSHE, external control, and high sensitivity in a single platform.

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来源期刊

Surfaces and Interfaces Chemistry-General Chemistry

CiteScore

8.50

自引率

6.50%

发文量

753

审稿时长

35 days

期刊介绍： The aim of the journal is to provide a respectful outlet for ''sound science'' papers in all research areas on surfaces and interfaces. We define sound science papers as papers that describe new and well-executed research, but that do not necessarily provide brand new insights or are merely a description of research results. Surfaces and Interfaces publishes research papers in all fields of surface science which may not always find the right home on first submission to our Elsevier sister journals (Applied Surface, Surface and Coatings Technology, Thin Solid Films)