One-dimensional GdIII–MII (M = Mn, Co) acetate chains exhibiting a large cryogenic magnetocaloric effect at ΔH = 3 T

Abstract

Two one-dimensional acetate chains, Gd^III–Mn^II (1) and Gd^III–Co^II (2), have been prepared. Magnetic investigations indicate that the magnetic entropy changes (−ΔS_m) in 1 have maximum values of 38.70 J kg⁻¹ K⁻¹ at ΔH = 7 T and 31.08 J kg⁻¹ K⁻¹ at ΔH = 3 T, while these in 2 have maximum values of 35.18 J kg⁻¹ K⁻¹ at ΔH = 7 T and 28.67 J kg⁻¹ K⁻¹ at ΔH = 3 T.