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The Concentration‐Dependence of the Anomalous Electronic Transport Properties of Noble Metals Containing Small Amounts of Transition Metals
Author(s) -
Sundaram R.,
Chari M. S. R.
Publication year - 1964
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.19640070106
Subject(s) - electrical resistivity and conductivity , materials science , transition metal , metal , manganese , condensed matter physics , dilution , analytical chemistry (journal) , thermodynamics , chemistry , metallurgy , physics , biochemistry , chromatography , quantum mechanics , catalysis
The variation with the transition metal content of the anomalous electronic transport properties of dilute noble metal alloys at helium temperatures is discussed. The numerical value of the electrical (transverse) magneto‐resistivity of the dilute alloys Cu—Mn. Au—Fe and Ag—Mn falls sharply at a concentration below about 0.05 atoms percent of the transition metal. The thermo‐electric power of dilute Au—Mn and Au—Fe alloys shows a similar behaviour with dilution. The variation with the solute content of the maximum (fractional) contribution of inelastic scattering to the electronic thermal resistivity, defined as f ′ = [{( w e T ) max /( w e T ) 0 } — 1] for three rods of Ag—Mn, closely follows the behaviour of the thermo‐electric power of dilute Cu—Fe and Au—Fe. It is suggested that f ′ would likewise show an extremum corresponding to a manganese content of about 0.02 atoms percent in silver.