Study of Microwave-Absorbing Property of Nanometer Multi-Layer

摘要

Ferromagnetic layer and dielectric layer of nanometer thickness were deposited alternatively on quartz glass plates to compose nanometer multiple-layers with microwave absorbing function by electrostatic self-assembly. The thickness of a double-layer composed of a ferromagnetic layer and a dielectric layer is 6 approx 8 nm measured by UV-VS spectrophotometer. The nanometer multi-layer with total thickness of 100 approx 200 nm exhibits obvious microwave-absorbing effect in the wave range of 8 approx 18 GHz and the maximum attenuation reaches -16.85 dB. The wave-absorbing mechanism of nanometer multiple-layers was discussed based on the quantum theory.