抄録
The temperature dependence of forced volume magnetostriction dω⁄dH for Ni1−xTix (x≤0.1) and Ni1−xVx (x≤0.08) alloys has been measured using the 3-terminal capacitance method. The values of dω⁄dH for Ni∼8 at%Ti–Ni and ∼6 at%V–Ni alloys change their sign from positive to negative with raising the temperature. Pressure coefficients, d ln μ⁄dp and d ln Tc⁄dp, have been deduced from the temperature dependence of dω⁄dH using the thermodynamical and the Kornetzki-Kouvel relations. The relation between two pressure coefficients above are analysed according to Inoue and Shimizu’s discussion. The values of the coefficient C⁄χhfTc obtained decrease gradually from 2 to 1 with decreasing Tc toward 0 K for both alloy systems.
