Magnetic hybrid organic–inorganic perovskite (CH3NH3)2XCl4 (X = Mn, Cu, Co) crystals

Abstract

For the hybrid organic–inorganic perovskites with the general formula of A₂M^IIX₄ (A = methylammonium; M^II = Mn, Cu and Co; X = Cl), the arrangement of metal ions and organic ligands leads to a delicate balance of space, spin and charge, which results in diverse properties. In this paper, we reported a group of hybrid organic–inorganic perovskite single crystals of (CH₃NH₃)₂MnCl₄, (CH₃NH₃)₂CuCl₄ and (CH₃NH₃)₂CoCl₄ grown by a simple solution evaporation method. Magnetic measurements show that all the single crystals display magnetic ordering at low temperature. Our results reveal a novel group of hybrid organic–inorganic magnetic perovskites.