ja3073319_si_004.cif (13.35 kB)
Above-Room-Temperature Magnetodielectric Coupling in a Possible Molecule-Based Multiferroic: Triethylmethylammonium Tetrabromoferrate(III)
dataset
posted on 2012-11-14, 00:00 authored by Hong-Ling Cai, Yi Zhang, Da-Wei Fu, Wen Zhang, Tao Liu, Hirofumi Yoshikawa, Kunio Awaga, Ren-Gen XiongA possible above-room-temperature molecular multiferroic,
triethylmethylammonium
tetrabromoferrate(III) (1), has been discovered. Its
ferroelectric and magnetic phase transitions take place at almost
the same temperature (∼360 K), resulting in strong magnetodielectric
(MD) coupling, with a MD ratio of 18% at 0.6 MHz. Interestingly, 1 also undergoes a low-temperature ferroelectric–ferroelectric
phase transition with an Aizu notation of 6mmF6 and
small magnetic and dielectric anomalies at 171 K.