Entropy-Mediated Lattice Distortion for Tailored Dielectric Polarization to Improve L-Band Electromagnetic Wave Absorption

IF 36.3 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2026-05-07 DOI:10.1007/s40820-026-02203-x

Han Ding, Yibo Li, Yu Wang, Weikang Song, Xuan Wang, Xijiang Han, Ping Xu, Yunchen Du

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引用次数: 0

Abstract

Highlights

This work employs a configurational-entropy control strategy to progressively enhance lattice distortion in multi-principal element alloys, thereby reconstructing their electronic structure and balancing electromagnetic parameters under high electromagnetic loss.
Density functional theory calculations demonstrate that entropy-induced lattice distortion further drives asymmetric electron cloud reconstruction, thus forming numerous dipolar polarization centers, which enhances low-frequency dielectric attenuation of high-entropy alloy (HEA).
HEA exhibits excellent low-frequency electromagnetic absorption, radar stealth, and corrosion resistance, while metamaterial structural design further broadens its absorption bandwidth.

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为改善l波段电磁波吸收而定制的介电极化的熵介导晶格畸变

本工作采用构型熵控制策略，逐步增强多主元素合金的晶格畸变，从而重建其电子结构，平衡高电磁损耗下的电磁参数。密度泛函理论计算表明，熵致晶格畸变进一步驱动不对称电子云重建，从而形成大量的偶极极化中心，增强了高熵合金（HEA）的低频介电衰减。HEA具有优异的低频电磁吸收、雷达隐身和耐腐蚀性能，而超材料结构设计进一步拓宽了其吸收带宽。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.