title: Above-room-temperature magnetodielectric coupling in a possible molecule-based multiferroic: triethylmethylammonium tetrabromoferrate(III).
abstract: A 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.
authors.affiliation: Ordered Matter Science Research Center, Southeast University, Nanjing, PR China.
authors.forename: Hong-Ling
authors.initials: HL
authors.lastname: Cai
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Da-Wei
authors.initials: DW
authors.lastname: Fu
authors.forename: Wen
authors.initials: W
authors.lastname: Zhang
authors.forename: Tao
authors.initials: T
authors.lastname: Liu
authors.forename: Hirofumi
authors.initials: H
authors.lastname: Yoshikawa
authors.forename: Kunio
authors.initials: K
authors.lastname: Awaga
authors.forename: Ren-Gen
authors.initials: RG
authors.lastname: Xiong
mesh_terms: D004574:Electromagnetic Fields; D005290:Ferric Compounds / Q000737:chemistry*; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*; D013696:Temperature
chemical_list: D005290:Ferric Compounds; D000644:Quaternary Ammonium Compounds