Anomalies Due to <i>s</i>-<i>d</i> Interaction in Dilute Au-V Alloys

Abstract

The magnetic susceptibility and the electrical resistivity of dilute Au-V alloys, between 0.3 and 2.0 at.% of vanadium are measured in the temperature range from 1.4°K to 1000°K. The temperature variation of the magnetic susceptibility follows the Curie-Weiss type formula µ 2 /3 k ( T + A ), where A is 290±10°K. The electrical resistivity of the solute varies logarithmically at the high temperature and becomes parabolic, 1-( T / B ) 2 with B =280°K∼310°K, at the low temperature limit. These observations are independent of vanadium concentrations. The above experimental facts are discussed in comparison with the recently reported theories of the s - d interaction. The Kondo temperature is found to be about 300°K.