Enhanced Microwave Absorption Performance in Sr-Modified LaNiO Nickelate With High Dielectric Loss
Frontiers in Materials, ISSN: 2296-8016, Vol: 7
2020
- 6Citations
- 11Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
This work aims to achieve the excellent microwave absorption in layered dielectric nickelate compounds. The phase, microstructure, electromagnetic properties, and microwave absorption of the Sr-modified LaSrNiO (x = 0, 0.3, 0.5, 0.75) nickelates were investigated, determining and analyzing the role of Sr doping level. All compounds reveal the single tetragonal phase identified as the I4/mmm space group, and the lattice parameters correlate with the doping content, evidenced by Rietveld refinement. By introducing strontium, the pronouncedly increased electronic conductivity contributes to the high dielectric loss, which gives rise to a superior attenuation ability and absorbing bandwidth. A minimum reflection loss of -21.07 dB was found in LaSrNiO (x = 0.75) at a thickness of 1.9 mm, covering the effective bandwidth of 2.9 GHz. This enhanced microwave absorbing performance in nickelate shows promise in the radar absorbing field.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85090021445&origin=inward; http://dx.doi.org/10.3389/fmats.2020.00271; https://www.frontiersin.org/article/10.3389/fmats.2020.00271/full; https://dx.doi.org/10.3389/fmats.2020.00271; https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2020.00271/full
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