Optical and magnetic properties for metal halide-based organic-inorganic layered perovskites

Abstract Layered perovskites (RNH 3 ) 2 CuCl 4 , where R was methyl-benzene C 6 H 5 –CH 2 , 1-methyl-naphthalene 1-C 10 H 9 –CH 2 , 1-propyl-naphthalene 1-C 10 H 9 –O(CH 2 ) 3 and 1-butyl-naphthalene 1-C 10 H 9 –O(CH 2 ) 4 , were synthesized. These complexes showed ferromagnetism, with different Curie temperatures, T C , depending on the structure of the molecule. The change of T C by taking into account the overlap of the electronic states between the organic and the inorganic layers were discussed.