Dielectric behavior of single iron atoms dispersed on nitrogen-doped nanocarbon

We report the enhanced dielectric properties of iron atomically dispersed on nanocarbon. Theoretical simulations and calculations based on the Havriliak–Negami model and the first principles demonstrate that the increased dielectric property can be explained by the increased electrical conductivity...

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Published in:Applied physics letters 2020-04, Vol.116 (15)
Main Authors: Yuan, Haoran, Li, Bei, Zhu, Chunling, Xie, Ying, Jiang, Yongjie, Chen, Yujin
Format: Article
Language:English
Subjects:
Applied physics
Computer simulation
Dielectric properties
Dielectric relaxation
Electrical resistivity
Electromagnetic fields
Electromagnetic radiation
First principles
Graphene
Iron
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cited_by cdi_FETCH-LOGICAL-c327t-1ba1cb3860f71f7e84d1877a160f8c95a567c75067e19d0e6273bb5508364da53
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creator Yuan, Haoran
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Zhu, Chunling
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description We report the enhanced dielectric properties of iron atomically dispersed on nanocarbon. Theoretical simulations and calculations based on the Havriliak–Negami model and the first principles demonstrate that the increased dielectric property can be explained by the increased electrical conductivity and dielectric relaxations caused by the introduction of single iron atoms. Nanocarbon with single iron atoms exhibited enhanced electromagnetic wave absorption properties and could be further improved when being coupled with reduced graphene oxide. Our findings open a way for exploring high-performance materials with single metal atoms for practical applications in electromagnetic fields.
doi_str_mv 10.1063/1.5143154
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source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list); AIP - American Institute of Physics
subjects Applied physics
Computer simulation
Dielectric properties
Dielectric relaxation
Electrical resistivity
Electromagnetic fields
Electromagnetic radiation
First principles
Graphene
Iron
title Dielectric behavior of single iron atoms dispersed on nitrogen-doped nanocarbon
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