Magnetocaloric Effect and Thermal Conductivity of a 3D Coordination Polymer of [Gd(HCOO)(C₂O₄)]_n

Abstract

A 3D coordination polymer, [Gd(HCOO)(C2O4)]n was prepared. Its magnetocaloric effect (MCE) (32.7 J K–1 kg–1 at 2 K and 2 T) is significantly larger than that of commercial Gd3Ga5O12 (GGG) (14.6 J kg–1 K–1 at 2 K and 2 T), while its thermal conductivity (9.9 W m–1 K–1 at 3 K) is comparable to that of the commercial GGG (about 10 W m–1 K–1 at 3 K).