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Effect of localization on the temperature‐dependent impurity resistance in dilute non‐magnetic alloys
Author(s) -
Dubey S. K.,
Dayal B.
Publication year - 1973
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.2220570134
Subject(s) - impurity , alloy , condensed matter physics , materials science , electron paramagnetic resonance , metal , matrix (chemical analysis) , resonance (particle physics) , coupling (piping) , electron , fermi level , doping , magnetic impurity , phonon , chemistry , atomic physics , metallurgy , nuclear magnetic resonance , physics , organic chemistry , quantum mechanics , composite material
A previous theory of the temperature dependence of the impurity resistance, is applied to those alloy systems where the constituent atoms have nearly equal masses. An expression is developed for the matrix element describing the coupling of the unperturbed phonons with the impurity electrons. Detailed calculations are made for a silver—cadmium dilute alloy, silver being the host metal. Satisfactory agreement with the experimental values is obtained. The results show that in this alloy system resonance states below the Fermi level are formed. Further it is shown that localized states are formed when the structure is h.c.p. and resonance states when the structure is cubic.