Engineered moiré photonic and phononic superlattices

IF 37.2 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nature Materials Pub Date : 2024-08-30 DOI:10.1038/s41563-024-01950-9

Mourad Oudich, Xianghong Kong, Tan Zhang, Chengwei Qiu, Yun Jing

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Abstract

Recent discoveries of Mott insulating and unconventional superconducting states in twisted bilayer graphene with moiré superlattices have not only reshaped the landscape of ‘twistronics’ but also sparked the rapidly growing fields of moiré photonic and phononic structures. These innovative moiré structures have opened new routes of exploration for classical wave physics, leading to intriguing phenomena and robust control of electromagnetic and mechanical waves. Drawing inspiration from the success of twisted bilayer graphene, this Perspective describes an overarching framework of the emerging moiré photonic and phononic structures that promise novel classical wave devices. We begin with the fundamentals of moiré superlattices, before highlighting recent studies that exploit twist angle and interlayer coupling as new ingredients with which to engineer and tailor the band structures and effective material properties of photonic and phononic structures. Finally, we discuss the future directions and prospects of this emerging area in materials science and wave physics. Platforms that exhibit moiré patterns have the potential to tailor band structures and control electromagnetic and mechanical waves. This Perspective discusses the current state of the art, challenges and outlook within the realm of classical wave physics.

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工程莫伊里光子和声子超晶格

最近在具有摩尔纹超晶格的扭曲双层石墨烯中发现了莫特绝缘态和非常规超导态，这不仅重塑了 "扭曲电子学 "的格局，还引发了摩尔纹光子和声子结构领域的迅速发展。这些创新的摩尔纹结构为经典波物理学开辟了新的探索道路，带来了有趣的现象以及对电磁波和机械波的有力控制。本视角从扭曲双层石墨烯的成功中汲取灵感，描述了有望实现新型经典波器件的新兴摩尔纹光子和声子结构的总体框架。我们首先介绍了摩尔纹超晶格的基本原理，然后重点介绍了利用扭曲角度和层间耦合作为新成分的最新研究，这些新成分可用于设计和定制光子和声子结构的带状结构和有效材料特性。最后，我们将讨论材料科学和波物理学这一新兴领域的未来发展方向和前景。呈现摩尔纹的平台具有定制带状结构和控制电磁波与机械波的潜力。本视角讨论了经典波物理学领域的技术现状、挑战和前景。

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来源期刊

Nature Materials 工程技术-材料科学：综合

CiteScore

62.20

自引率

0.70%

发文量

221

审稿时长

3.2 months

期刊介绍： Nature Materials is a monthly multi-disciplinary journal aimed at bringing together cutting-edge research across the entire spectrum of materials science and engineering. It covers all applied and fundamental aspects of the synthesis/processing, structure/composition, properties, and performance of materials. The journal recognizes that materials research has an increasing impact on classical disciplines such as physics, chemistry, and biology. Additionally, Nature Materials provides a forum for the development of a common identity among materials scientists and encourages interdisciplinary collaboration. It takes an integrated and balanced approach to all areas of materials research, fostering the exchange of ideas between scientists involved in different disciplines. Nature Materials is an invaluable resource for scientists in academia and industry who are active in discovering and developing materials and materials-related concepts. It offers engaging and informative papers of exceptional significance and quality, with the aim of influencing the development of society in the future.