Journal
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
Volume 10, Issue 12, Pages -Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2162-8777/ac3e45
Keywords
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Funding
- Startup Research Fund of Shandong Jiaotong University [50004931]
- School-level Fund of Shandong Jiaotong University [Z201914]
- Natural Science Foundation of Shandong Province, China [ZR2021QE090]
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The study demonstrated that metal composites can achieve negative permittivity and exhibit inductive characteristics under certain compositions. This provides support for the realization of tunable low-frequency negative permittivity in metal composites.
Negative permittivity in percolation composites has drawn much attention owing to their potential application. This study set out to explore whether tunable negative permittivity can be realized in metal composites at 3 kHz similar to 1 MHz frequency regions. When the content of cobalt is 80 wt%, the permittivity turns to negative in the test band. These findings show that the Co conductive network has formed and provides large numbers of free electrons. Meanwhile, the percolation composites with negative permittivity show inductive characteristic. This research supports the idea that tunable low-frequency negative permittivity can be realized in metal composites.
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