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Effect of a DC Field on the Lattice Diffusion of Silver‐110 in Copper and Gold
Author(s) -
Archipova N. K.,
Klotsman S. M.,
Timofeev A. N.,
Trakhtenberg I. Sh.
Publication year - 1966
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19660160239
Subject(s) - electromigration , copper , materials science , diffusion , ion , direct current , electrical resistivity and conductivity , lattice (music) , condensed matter physics , analytical chemistry (journal) , chemistry , thermodynamics , metallurgy , composite material , power (physics) , physics , organic chemistry , chromatography , acoustics , electrical engineering , engineering
A study is made of the effect of a direct current, with a density of about 100 to 150 A/mm 2 , on the diffusion of silver‐110 in gold (99.99%) and copper (“high purity” grade) at temperatures above 800°C. Diffusion of silver‐110 is measured by the residual activity method. The direction of the electromigration and the magnitude of the activated ion “effective charge” is clear evidence for electron drag. The “effective charge” decreases linearly with temperature increase. The temperature coefficient of the “effective charge” of silver in gold and copper is higher than the temperature coefficient of the matrix conductivity.