Effect of Pressure on the Curie Temperature in GdZn_1-<i>x</i>In_<i>x</i> (0≤<i>x</i>≤0.15)

Abstract

Effect of pressure on the Curie temperature has been studied in ferromagnetic compound GdZn 1- x In x (0≤ x ≤0.15) under hydrostatic pressures up to 6000 bar. Change of sign in the pressure coefficient of the Curie temperature (1/ T c )·(Δ T c /Δ P ) was found from negative (0≤ x ≤0.016) to positive (0.024≤ x ≤0.15) at x =0.02 concentration. The coefficient was -0.05 ×10 -6 bar -1 for GdZn and +2.47×10 -6 bar -1 for GdZn 0.85 In 0.15 sample.