Anomalies Due to s-d Interaction in Dilute Au–V Alloys

抄録

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 μ²⁄3k(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.