Date of Award
Spring 1972
Document Type
Thesis - Restricted
Degree Name
Master of Science (MS)
Department
Physics
First Advisor
Bills, Francis A.
Second Advisor
Greene, J. B.
Third Advisor
Tani, Smio
Abstract
Surface diffusion coefficients have been determined by several groups of investigators who have all assumed that the coefficient is independent of concentration. This however, is not a valid assumption in the case of atoms migrating over a surface. In certain cases, an appropriate' change of variables reduces the general diffusion equation to an equation with a single independent variable, and allows one to obtain a solution involving the concentration- dependent diffusion coefficients. The atomic beam method offers a new experimental approach to the study of surface migration. From measurements of the concentration of potassium atoms migrating along a stainless steel surface, concentration-dependent surface diffusion coefficients are determined.
Recommended Citation
Kellen, Robert A., "Determination of Concentration-Dependent Surface Diffusion Coefficients" (1972). Master's Theses (1922-2009) Access restricted to Marquette Campus. 2251.
https://epublications.marquette.edu/theses/2251