期刊论文

The Influences of Magnetic Field Direction on Hydrogen Plasma Microwave Absorption in Carbon Nanotubes

中文

洛阳理工学院学报(自然科学版)

1674-5043

2015

1

84-87

10.3969/i.issn.1674-5043.2015.01.021

湖南省自然科学基金项目（14JJ2085）； 南华大学博士基金项目（2011XQD45）；

本校为第一机构

深入研究了外加磁场的方向对碳纳米管薄膜中氢等离子体电磁波衰减性能的影响。根据磁离子理论和W.K.B半经典近似法,理论推导了外加静磁场方向和微波传播方向之间的夹角θ为任一值时,碳纳米管薄膜磁化氢等离子体的复介电常数和微波衰减吸收系数公式。在不同条件下数值计算了碳纳米管薄膜中磁化氢等离子体的微波衰减吸收随θ的变化关系。理论结果表明:只要适当调控磁场方向,应用外加静磁场能有效改进碳纳米管氢等离子体的微波衰减吸收性能。通过调节氢等离子体密度、电子有效碰撞频率、外加静磁场的强度和方向,能获得碳纳米管薄膜氢等离子体对某一特定频段微波能的强烈吸收。

The influences of external magnetic field direction on hydrogen plasma microwave attenuation absorption in carbon nanotubes have been investigated in depth.With magneto-ionic theory and W.K.B approximation,the formula of complex permittivity and mi-crowave attenuation coefficients in magnetized hydrogen plasma carbon nanotubes film has been deduced at an arbitrary angle θof the external static background magnetic field direction with respect to incident wave propagation.The microwave attenuation coefficients of hydrogen plasma in CNTs film are...