Critical behavior of [formula omitted] intermetallic compound

Abstract

The critical behavior of a new ternary intermetallic compound Gd2Rh3Ge has been investigated around the second order ferromagnetic transition temperature (TC). The field dependence of magnetic entropy changes and isothermal magnetization at critical temperature were used to study critical behavior in Gd2Rh3Ge. The exponents β = 0.299(2) and γ = 1.042(1) were evaluated from the modified Arrott-plot method, while β = 0.308(1) and γ = 0.982(2) were estimated through the Kouvel-Fisher method. The reliability of the obtained critical exponents were examined by using the universal scaling hypothesis. These estimated values for the critical exponents indicate that the ferromagnetic compound Gd2Rh3Ge has long-range interactions between spins, which decays with distance (r) as J(r) ∼r-(σ+d) with σ = 1.91.