抛物形针尖的场发射：电流分布、净电流和有效发射面积
Field-emission from parabolic tips: current distributions, the net current and effective emission area
摘要：
来自纳米结构发射器的场发射主要从尖端发生。使用关于顶点周围增强因子变化的最新结果（Biswas等人，Ultramicroscopy 185，1-4（2018）），根据顶点半径$R_a$和顶点处的局部电场$E_a$推导出净发射电子的表面分布以及总能量和正常能量分布的解析表达式。还得到了用这些量表示的净发射电流和有效发射面积的公式。
英文摘要：
Field emission from nano-structured emitters primarily takes place from the tips. Using recent results on the variation of enhancement factor around the apex (Biswas et al, Ultramicroscopy 185, 1-4 (2018)), analytical expressions for surface distribution of net emitted electrons as well as the total and normal energy distributions are derived in terms of the apex radius $R_a$ and the local electric field at the apex $E_a$. Formulae for the net emitted current and effective emission area in terms of these quantities are also obtained.
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