Analysis of Periodic Schottky Deviations from Iridium Filaments
- 6 November 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 19 (19), 1117-1119
- https://doi.org/10.1103/physrevlett.19.1117
Abstract
The periodic deviation from the Schottky effect for thermionic emission has been measured for iridium polycrystalline wire over a temperature range from 1500 to 2000°K. A least-squares computer program was used to fit the experimental data with the periodic term predicted by the Miller-Good theory and deduce a complex reflection coefficient for the surface potential. However, the results also indicate that the amplitude of the experimental deviation increases slightly faster with field than is predicted by theory.
Keywords
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