The effects of static magnetic field on microwave absorption of hydrogen plasma in carbon nanotubes: A numerical study |
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| Authors: | Peng Zhi-Hua Gong Xue-Yu Peng Yan-Feng Guo Yan-Chun Ning Yan-Tao |
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| Affiliation: | School of Mathematics and Physics, University of South China, Hengyang 421001, China |
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| Abstract: | We theoretically investigate the microwave absorption properties of hydrogen plasma in iron-catalyzed highpressure disproportionation-grown carbon nanotubes under an external static magnetic field in the frequency range 0.3 GHz to 30 GHz, using the Maxwell equations in conjunction with a general expression for the effective complex permittivity of magnetized plasma known as the Appleton–Hartree formula. The effects of the external static magnetic field intensity and the incident microwave propagation direction on the microwave absorption of hydrogen plasma in CNTs are studied in detail. The numerical results indicate that the microwave absorption properties of hydrogen plasma in iron-catalyzed high-pressure disproportionation-grown carbon nanotubes can be obviously improved when the external static magnetic field is applied to the material. It is found that the specified frequency microwave can be strongly absorbed by the hydrogen plasma in iron-catalyzed high-pressure disproportionation-grown carbon nanotubes over a wide range of incidence angles by adjusting the external magnetic field intensity and the parameters of the hydrogen plasma. |
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| Keywords: | carbon nanotubes hydrogen plasma static magnetic field microwave absorption |
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