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

For the hybrid organic-inorganic perovskites with the general formula of A2MIIX4(A = methylammonium; MII= 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)2CuCl4and (CH3NH3)2CoCl4grown 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.