Open AccessPyroelectricity and field-induced spin-flop in (4-(Aminomethyl)pyridinium) 2 MnCl 4 · 2H 2 O
Author(s) -
Kaige Gao,
Chunlin Li,
Wei Zhang,
Kangni Wang,
Wenlong Liu
Publication year - 2020
Publication title -
royal society open science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 51
ISSN - 2054-5703
DOI - 10.1098/rsos.200271
Subject(s) - antiferromagnetism , pyroelectricity , pyridinium , condensed matter physics , ferroelectricity , hysteresis , spin (aerodynamics) , materials science , crystallography , chemistry , physics , thermodynamics , optoelectronics , medicinal chemistry , dielectric
Large single crystals of (4-(Aminomethyl)pyridinium) 2 MnCl 4 · 2H 2 O ( 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 show that 1 is antiferromagnetic ordering below 2.5 K. A field-induced spin-flop is observed in the antiferromagnetic ordering state.