Magnetic properties of Y_(0.9)Gd_(0.1)Fe_2D_(4.2) compound under continuous magnetic field up to 310 kOe

摘要

In this work are presented results on the structural, magnetic, and magnetocaloric properties of the Y_(0.9)Gd_(0.1)Fe_2D_(4.2) compound in which T_(M0) is shifted from 84 K to 110 K because of Gd influence. Magnetization measurements have been performed with a magnetic field up to 310 kOe in the 4.2-300 K temperature range with special attention paid near T_(M0). The spontaneous magnetization at 4.2 K (3.2 μ_B/mol) is smaller than for YFe_2D_(4.2) (3.7 μ_B/mol), showing the contribution of Gd moments. Above 110 K, metamagnetic field-induced transitions are observed: the transition field H_(TR) increases linearly with T. These transitions exist up to 170 K. The influence of both cell volume change and Gd magnetic contribution are finally discussed in comparison with other deuterides.