| Автор | T J Lewis |
| Дата выпуска | 1955-08-01 |
| dc.description | Recent experiments (e.g. Llewellyn Jones and Morgan 1953) have shown that the emission of electrons from smooth cathodes having a thin tarnish film requires the initial deposition of positive ions and that the process then depends on the magnitude of the applied field (~10<sup>4</sup> v cm<sup>-1</sup>). The mechanism of this emission has hitherto been thought to be one of high-field cold emission through the surface barrier. The nature of this barrier is considered in more detail and it is shown that cold emission is improbable. An alternative theory of field dependent thermal emission is proposed which takes into account the existence of patch fields due to variation in the work function over the surface and uses a more realistic value for the degree of field enhancement near the surface. It is shown that, with this mechanism, the predicted emitting areas can be of more probable dimensions. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | The Mechanism of High-Field Electron Emission from Tarnished Metal Surfaces |
| Тип | paper |
| DOI | 10.1088/0370-1301/68/8/303 |
| Print ISSN | 0370-1301 |
| Журнал | Proceedings of the Physical Society. Section B |
| Том | 68 |
| Первая страница | 504 |
| Последняя страница | 512 |
| Аффилиация | T J Lewis; Electrical Engineering Department, Queen Mary College, University of London |
| Выпуск | 8 |
