Enhanced Magnetocaloric Effect from Cr Substitution in Ising Lanthanide Gallium Garnets Ln3CrGa4O12 (Ln = Tb, Dy, Ho)

The authors acknowledge funding support from the Winton Programme for the Physics of Sustainability. Magnetic measurements were carried out using the Advanced Materials Characterization Suite, funded by EPSRC Strategic Equipment Grant EP1M00052411. Supporting data can be found at https://doi.org/10.17863/CAM.9895, neutron diffraction data can also be found at https://doi.org/10.5291/ILL-DATA.5-31-2457.Figure 7. ∆Sm per mole as a function of temperature for Ln3CrGa4O12 compared to Ln3Ga5O12 (Ln = Tb, Dy, Ho) in a field of 2 T, the inset: field dependence of ∆Sm per mole at T = 2 K – a) Ln = Tb, b) Ln = Dy, c) Ln = Ho.