Metallic-Field Effect and Its Consequences in Field Emission, Field Ionization, and the Capacitance of a Capacitor
- 1 August 1972
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 6 (3), 801-812
- https://doi.org/10.1103/physrevb.6.801
Abstract
The metallic-field effect at a metal surface is calculated in a semi-self-consistent manner using an approximate version of Bardeen's method for the evaluation of the surface potential barrier. The consequences of the metallic-field effect in relation to field emission, field ionization, and the capacitance of a parallel-plate capacitor are considered. In field emission this produces, at high fields, a small deviation from the Fowler-Nordheim formula towards lower currents. In field ionization it leads to increased ion current and a narrower energy distribution. It has no significant effect on the capacitance of a capacitor.Keywords
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