journal article·2021-02

Controlling negative permittivity and permeability behavior in LaFeO3 through sintering temperature

Qiang Li, Guangzhou Zhu

Ceramics International· Volume 47· Issue 4
Publisher page

Abstract

Abstract In this paper, the resonance behavior of LaFeO3 in the GHz range was investigated. Synthesis of LaFeO3, by solid state reaction between Fe2O3 and La2O3, was confirmed by X-ray diffractometry. LaFeO3 exhibited dielectric resonance and magnetic resonance, which can lead to negative permittivity and negative magnetic permeability. By controlling sample synthesis parameters, specifically sintering temperature, the peak in negative permeability can be tuned between 2.6 and 2.8 GHz, while the peak in negative permittivity can be tuned between 0.8 and 1.2 GHz. This material can be applied to fields such as electromagnetic metamaterials, where it could be used to increase the gain of an antenna, or to control the transmission of microwaves.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Metamaterials and Metasurfaces Applications · Electromagnetic wave absorption materials · Antenna Design and Analysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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