Electrokinetic characteristics of structurally disordered binary alloy Ni1-xPx

Abstract

The paper presents the results of studies of the temperature dependences of the resistivity ρ(T) and the Seebeck coefficient S(T) of binary structurally disordered alloys of the Ni1–xPx system. It was found that at 0.10 < x < 0.25 the absolute value of S(T) increases with phosphorus concentration and changes the sign, becoming positive at x > 0.18. The resistivity ρ increases with x, the temperature coefficient of electrical resistance α decreases and becomes negative, and S also increases and becomes positive near x = 0.18. These results agree with the Mooij correlation and the r-S correlation for the studied samples, namely for samples with high resistivity S > 0 and for samples with low resistivity – S < 0, which is observed in some non magnetic structurally disordered alloys. Thus, the Ni1-xPx system covers the range and behavior of electrokinetic characteristics that are characteristic of a few structurally disordered alloys. For x < 0.175 dependencies r(T) and S(T) of the studied samples are similar to those observed in ferromagnetic structurally disordered iron-based alloys.