Near room temperature dielectric transition in the perovskite formate framework [(CH3)2NH2][Mg(HCOO)3]†
Abstract
We report that the hybrid organic–inorganic compound [(CH3)2NH2][Mg(HCOO)3] shows a marked dielectric transition around Tt ∼ 270 K, associated to a structural phase transition from SG Rc (centrosymmetric) to Cc (non-centrosymmetric). This is the highest Tt reported so far for a perovskite-like formate that is thus a promising candidate to display electric order very close to room temperature.