Abstract:
We have investigated the magnetic properties of antiperovskite Mn(3)GaC(x). Tailoring of carbon content affects the magnetic transition temperature of these materials. Magnetization decreases with decrease in carbon deficiency however carbon excess shows a reverse pattern. The virgin magnetization curves lie outside the hysteresis loop for x greater than 0.8 showing competing ferromagnetic and antiferromagnetic interactions. The pinching of magnetization loops seen especially in the case of x = 0.95 and 1.00 indicate field induced metamagnetic transitions.
