Two-dimensional Child-Langmuir law of planar diode with finite-radius emitter
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Two-dimensional Child-Langmuir law of planar diode with finite-radius emitter
- 发表刊物：
- Applied Surface Science
- 摘要：
- A planar diode with finite-radius emitter is studiedwith particle-in-cell simulations to extend the classical one-dimensional (1D) Child–Langmuir law to two-dimensions. It is found that the 2D space–charge-limited current density in units of the classical 1D value follows a monotonically decreasing function of the dimensionless ratio of emitter radius (R) to gap separation (D), and the function can be extended to relativistic regimewithout significantmodification. It is also verified that Lau's analytical prediction of
the 2D Child–Langmuir law is in better agreement with the simulation results in comparison with Rokhlenko's
- 合写作者：
- Yongdong Li, Hongguang Wang, Chunliang Liu, et. al
- 卷号：
- 251
- 页面范围：
- 19-23
- 是否译文：
- 否
- 发表时间：
- 2005-04-18