Facile and Efficient Negative Permittivity Realization of Copper Microwire Polymer Metacomposites at X-Band Frequency

Ju, Licheng; He, Qifa; Qin, Faxiang; Peng, Hua-Xin; Fan, Runhua

doi:10.1007/s11664-022-09483-0

Cited by 4 publications

(1 citation statement)

References 29 publications

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“…Ceramic-based negative permittivity materials may have higher inductance density than traditional inductors made of wire coils. As a result, ceramic materials showing negative permittivity have the potential for coil-less inductors [39,49,52].…”

Section: Reactance Analysis Of La 2 Niomentioning

confidence: 99%

High temperature study of dielectric and electrical conduction behaviour of La₂NiO₄

Katheriya,

Upadhyay

2023

Phys. Scr.

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Materials showing negative permittivity have attracted considerable attention from researchers on account of their notable applications in electronic and electromagnetic devices. Discovering materials exhibiting negative permittivity is a challenging task. Very few single-phase oxides have been reported as negative permittivity materials. In this work, we have attempted to investigate the dielectric properties of La2NiO4 to explore the possibility of negative permittivity. To achieve the goal, powder, and ceramic of La2NiO4 have been synthesized by the conventional solid-state reaction method. Rietveld refinement of the X-ray diffraction data studies has confirmed the tetragonal structure and space group I4/mmm. The Dielectric properties and AC conductivity have been studied in the frequency range of 20 Hz–2 MHz and over a wide temperature range (30 °C–600 °C). The permittivity of La2NiO4 is found to be negative at all the measured frequencies and temperatures. The Drude model fitted the experimental data very well, suggesting that negative permittivity behavior can be assigned to the plasma oscillation of conducting electrons. The trend of AC conductivity with frequency is similar to the skin effect observed in metals. The variation of DC conductivity with temperature indicated small polaron hopping conduction mechanism. Analysis of reactance (Z′′) suggested inductive electrical character in the tested frequency and temperature range. Room temperature negative permittivity behavior of La2NiO4 makes it a potential candidate for practical electronic and electromagnetic devices that work in the Radio-frequency range. Furthermore, this work will add a new member to the family of Perovskite oxides showing tunable negative permittivity.

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Section: Reactance Analysis Of La 2 Niomentioning

confidence: 99%

High temperature study of dielectric and electrical conduction behaviour of La₂NiO₄

Katheriya,

Upadhyay

2023

Phys. Scr.

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Spark plasma sintered graphene/copper calcium titanate ceramic composites with negative permittivity and enhanced thermal conductivity

Deng

et al. 2023

Ceramics International

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Negative permittivity at kHz regulated by length-diameter ratio of short carbon fibers in phenolic resin composites

Du,

Guo,

Sun

et al. 2023

Diamond and Related Materials

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Facile and Efficient Negative Permittivity Realization of Copper Microwire Polymer Metacomposites at X-Band Frequency

Cited by 4 publications

References 29 publications

High temperature study of dielectric and electrical conduction behaviour of La₂NiO₄

High temperature study of dielectric and electrical conduction behaviour of La₂NiO₄

Spark plasma sintered graphene/copper calcium titanate ceramic composites with negative permittivity and enhanced thermal conductivity

Negative permittivity at kHz regulated by length-diameter ratio of short carbon fibers in phenolic resin composites

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Facile and Efficient Negative Permittivity Realization of Copper Microwire Polymer Metacomposites at X-Band Frequency

Cited by 4 publications

References 29 publications

High temperature study of dielectric and electrical conduction behaviour of La2NiO4

High temperature study of dielectric and electrical conduction behaviour of La2NiO4

Spark plasma sintered graphene/copper calcium titanate ceramic composites with negative permittivity and enhanced thermal conductivity

Negative permittivity at kHz regulated by length-diameter ratio of short carbon fibers in phenolic resin composites

Contact Info

Product

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High temperature study of dielectric and electrical conduction behaviour of La₂NiO₄

High temperature study of dielectric and electrical conduction behaviour of La₂NiO₄