title: Near room temperature dielectric transition in the perovskite formate framework [(CH3)2NH2][Mg(HCOO)3].
abstract: We report that the hybrid organic-inorganic compound [(CH3)2NH2][Mg(HCOO)3] shows a marked dielectric transition around Tt∼ 270 K, associated to a structural phase transition from SG R3[combining macron]c (centrosymmetric) to Cc (non-centrosymmetric). This is the highest Tt reported so far for a perovskite-like formate that is thus a promising candidate to display electric order very close to room temperature.
authors.affiliation: Department of Fundamental Chemistry, University of A Coruña, 15071 A Coruña, Spain. tonasr@udc.es.
authors.forename: B
authors.initials: B
authors.lastname: Pato-Doldán
authors.forename: M
authors.initials: M
authors.lastname: Sánchez-Andújar
authors.forename: L C
authors.initials: LC
authors.lastname: Gómez-Aguirre
authors.forename: S
authors.initials: S
authors.lastname: Yáñez-Vilar
authors.forename: J
authors.initials: J
authors.lastname: López-Beceiro
authors.forename: C
authors.initials: C
authors.lastname: Gracia-Fernández
authors.forename: A A
authors.initials: AA
authors.lastname: Haghighirad
authors.forename: F
authors.initials: F
authors.lastname: Ritter
authors.forename: S
authors.initials: S
authors.lastname: Castro-García
authors.forename: M A
authors.initials: MA
authors.lastname: Señarís-Rodríguez