Magnetocaloric effect in Tb5Si2−xGe2−xFe2x (0≤2x≤0.1) compounds

Effects of size reduction on the magnetic and magnetocaloric properties of NdMn2Ge2nanoparticles prepared by high-energy ball milling

“…, ZFC and FC magnetization curves exhibit quite similar behavior above 200 K in a constant applied magnetic field of 150 Oe. In the ZFC curve, the magnetization retains low values and a small positive slope with increasing temperature until ∼200 K. Furthermore, there is a splitting between ZFC and FC curves below the spin‐reorientation temperature ( T SR ) that implies the presence of nonferromagnetic components pinning the domain walls . It was shown by earlier bulk magnetization measurements that NdMn 2 Ge 2 is a ferromagnet (Fig.…”

Role of the electronic structure in the morphotropic phase boundary of TbxDy1−xCo2 studied by first-principle calculation

“…The model of DyCo 2 in Laves phase was built with the lattice constant 7.12 A 25,26 , and It is proved that the T phase is energetically favorable for DyCo 2 . As shown in Figure 2a, the Laves phase, which is the parent phase for Tb x Dy 1-x Co 2 above Tc, tends to be unstable against tetragonal or rhombohedral distortion.…”

Giant magnetocaloric effect in Tb 5 Ge 2– x Si 2– x Mn 2 x compounds

“…In our previous studies on the alloying of Tb 5 Si 2 Ge 2 with Fe, Pb and Sn [12,13] we found that by Fe alloying, the first order transition is suppressed and the samples show only second order phase transitions; with no change of the Curie temperature T C and the isothermal magnetic entropy change. The maximum entropy change, refrigerant capacity, and the relative cooling power of Tb 5 Si 1.975 Ge 1.975 Fe 0.05 at a magnetic field change of 5 T was 13.28 J • kg −1 • K −1 , 461.82 J • kg −1 and 511.65 J • kg −1 , respectively.…”