Electrical Conductivity of Potassium Films on Potassium Chloride
- 15 November 1963
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 39 (10), 2709-2713
- https://doi.org/10.1063/1.1734087
Abstract
Potassium was evaporated onto a KCl crystal at 77°K under a vacuum of 10—9 Torr. Conductivity measurements were made before and after the film was annealed at room temperature. For the stable film, Ohm's law is obeyed up to about 25 V/cm and the temperature dependence of the conductance follows G=G0exp(—ΦE/kT) with ΦE=0.05–0.063 eV. The preannealed film became very unstable in a field near 250 V/cm and the current—voltage relation is nonlinear. The experimental results strongly suggest that in the stable film, the conduction is by the mechanism of impurity conduction subject to the Schottky effect while in the unsettled film, the currents, though mainly carried by electrons, are decisively controlled by mobile ions.Keywords
This publication has 14 references indexed in Scilit:
- The theory of impurity conductionAdvances in Physics, 1961
- Impurity Conduction at Low ConcentrationsPhysical Review B, 1960
- Impurity Conduction in Transmutation-Doped-Type GermaniumPhysical Review B, 1960
- Electrical resistivity of thin films of potassium at 100°KJournal of Physics and Chemistry of Solids, 1958
- Hall-Effekts- und Leitfähigkeitsmessungen an dünnen KaliumschichtenThe European Physical Journal A, 1957
- Bestimmung der mittleren freien Weglänge der Leitungselektronen in KaliumThe European Physical Journal A, 1955
- Die Entwicklung der Leitfähigkeit und des äußeren lichtelektrischen Effektes beim Übergang vom Einzelatom zum kompakten MetallThe European Physical Journal A, 1954
- The conductivity of thin metallic films according to the electron theory of metalsMathematical Proceedings of the Cambridge Philosophical Society, 1938
- The electrical conductivity of thin films of the alkali metals spontaneously deposited on glass surfacesProceedings of the Physical Society, 1937
- The electrical conductivity of thin metallic films II— caesium and potassium on pyrex glass surfacesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1937