Efficiently increasing low-field magnetic entropy by incorporating SO32− into Gd22Ni21 clusters

Abstract

The distinct nanosized cluster Gd₂₂Ni₂₁ was isolated using a mixture of anions (SO₃²⁻ and SO₄²⁻) as templates, and to the best of our knowledge, this was the first such 3d–4f cluster to have been developed. Additionally, of a number of 3d–4f heterometallic clusters, Gd₂₂Ni₂₁ showed the largest low-field magnetic entropy change (26.1 J kg⁻¹ K⁻¹) at 2.0 K and ΔH = 2.0 T.