Ultra-Thin Oxide-Based Double-Layer Architecture Achieves Wide-Temperature Broadband Microwave Absorption by Synergizing Lorentz Resonance and Thermionic Transport.

ABSTRACT: Achieving high and stable permittivity is essential for developing ultra-thin and wide-temperature adaptive microwave-absorbing materials (MAMs). Conventional high-permittivity MAMs suffer from temperature-sensitive permittivity and cannot achieve stable microwave-absorbing performance at fluctuating temperatures, while temperature-insensitive MAMs exhibit low permittivity that severely restricts ultra-thin designs. Herein, a double-layer La₂Zr₂O₇/Eu₂Zr₂O₇ architecture is employed, with rare-earth zirconates featuring with one-eighth anion-site vacancies, as a promising candidate for ultra-thin wide-temperature adaptive MAMs. The established balance between thermionic relaxation polarization and Lorentz dielectric resonance-

SUBMITTER: Duan Z 

PROVIDER: S-EPMC12786290 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature