Magnetization and specific heat studies of Gd2In

초록

We have measured the temperature and magnetic field dependence of the magnetization for Gd,In. The results show that Gd,In exhibits a helical ferromagnetic transition at 190 K and an antiferromagnetic transition at 100 K in zero and low applied fields. Both the helical ferromagnetic state at temperatures between 100 and 190 K and the antiferromagnetic state at low temperatures are transformed to a simple ferromagnetic state by high applied fields. The antiferromagnetic transition temperature decreases with increasing applied field and approaches zero at 11=25 kOe. We have also measured the temperature dependence of the specific heat for Gd,In. The data show two distinct specific heat anomalies which are associated with the two magnetic transitions. (C) 1996 American Institute of Physics.

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