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Updated: Mar 5, 2026

Introduction to Solid Supported Membrane Based Electrophysiology
Published on: May 11, 2013
Exact Model of Vacancy-Mediated Solute Transport in Magnesium
Ravi Agarwal1, Dallas R Trinkle1
1Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.
Abstract:
Most substitutional solutes in solids diffuse via vacancies. However, widely used analytic models for diffusivity make uncontrolled approximations in the relations between atomic jump rates that reduce accuracy. Symmetry analysis of the hexagonal close packed crystal identifies more distinct vacancy transitions than prior models, and a Green function approach computes diffusivity exactly for solutes in magnesium. We find large differences for the solute drag of Al, Zn, and rare earth solutes, and improved diffusion activation energies-highlighting the need for exact analytic transport models.
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