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Resistance Anomaly in Palladium–Silver Alloys Containing Rare Earth Impurities
Author(s) -
Chen C. W.,
Edwards L. R.,
Legvold S.
Publication year - 1968
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.19680260226
Subject(s) - electrical resistivity and conductivity , impurity , rare earth , materials science , palladium , anomaly (physics) , condensed matter physics , solid solution , kondo effect , electrical resistance and conductance , metallurgy , lattice (music) , analytical chemistry (journal) , chemistry , composite material , physics , biochemistry , organic chemistry , chromatography , quantum mechanics , acoustics , catalysis
Electrical resistivities of Pd and three Pd–Ag alloys containing small amounts of Gd and Nd are shown to display varying anomalies at low temperatures. With decreasing temperature, the resistivity‐temperature curves show (i) an accelerated decrease of resistivity at temperatures below some characteristic temperature. T d , in the binary Pd alloys, (ii) a minimum in the tertiary Pd 0.5 Ag 0.5 alloys, and (iii) a minimum and a sharp maximum in the tertiary Pd 0.35 Ag 0.65 and Pd 0.25 Ag 0.75 alloys. The present alloys, which constitute a continuous series of solid solutions having a common magnetic impurity, have thus exhibited a gradual shift from one to another of the three possible types of resistance anomalies predicted for dilute magnetic alloys by Kondo and other workers. The shift implies that a dominant role is played by the host lattice in the mechanism leading to a resistance anomaly.