rsos200271_si_001.docx (23.2 MB)
Supplementary information from Pyroelectricity and field-induced spin-flop in (4-(Aminomethyl)pyridinium)2MnCl4·2H2O
journal contribution
posted on 2020-05-16, 04:39 authored by Kaige Gao, Chunlin Liu, Wei Zhang, Kangni Wang, Wenlong LiuLarge single crystals of (4-(Aminomethyl)pyridinium)2MnCl4·2H2O (1) were grown by slow evaporation of solution. The crystal structure was solved to be Pī, which belongs to the central symmetric space group. But small pyroelectric current was detected, as well as a ferroelectric hysteresis loop. The pyroelectric and the ferroelectric properties were attributed to the strain caused by defects. Temperature-dependent magnetic curves and the M–H curve shows that 1 is antiferromagnetic ordering below 2.5 K. A field-induced spin-flop is observed in the antiferromagnetic ordering state.