Theory of Electron Diffusion Parallel to Electric Fields. II. Application to Real Gases
- 5 May 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 181 (1), 302-311
- https://doi.org/10.1103/PhysRev.181.302
Abstract
The theoretical analysis of the preceding paper is extended to include inelastic collisions. The resulting theory is then used to obtain values for the diffusion coefficient , which is appropriate for electrons diffusing parallel to an electric field. Theoretical values of are compared with values of as a function of for the gases helium, argon, hydrogen, deuterium, nitrogen, oxygen, carbon dioxide, water vapor, carbon monoxide, krypton, and xenon; is the electron mobility, is the diffusion coefficient for electron diffusion perpendicular to the electric field, is the electric field strength, and the number density of the gas. A comparison is also made between theoretical values of and the available experimental values of this quantity. Experimental differences that have been observed between and of the order of a factor of seven in argon and a factor of two in helium, hydrogen, and nitrogen are satisfactorily explained.
Keywords
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