A Room-Temperature Ferroelectric Ferromagnet in a 1D Tetrahedral Chain Network

Détails bibliographiques
Publié dans:	Advanced materials (Deerfield Beach, Fla.). - 1998. - 31(2019), 24 vom: 01. Juni, Seite e1808104
Auteur principal:	Kang, Kyeong Tae (Auteur)
Autres auteurs:	Roh, Chang Jae, Lim, Jinyoung, Min, Taewon, Lee, Jun Han, Lee, Kyoungjun, Lee, Tae Yoon, Kang, Seunghun, Seol, Daehee, Kim, Jiwoong, Ohta, Hiromichi, Khare, Amit, Park, Sungkyun, Kim, Yunseok, Chae, Seung Chul, Oh, Yoon Seok, Lee, Jaekwang, Yu, Jaejun, Lee, Jong Seok, Choi, Woo Seok
Format:	Article en ligne
Langue:	English
Publié:	2019
Accès à la collection:	Advanced materials (Deerfield Beach, Fla.)
Sujets:	Journal Article 1D tetrahedral networks SrFeO2.5 ferroelectricity magnetoelectric coupling multiferroicity

Description
Résumé:	© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Ferroelectricity occurs in crystals with broken spatial inversion symmetry. In conventional perovskite oxides, concerted ionic displacements within a 3D network of transition-metal-oxygen polyhedra (MOx ) manifest spontaneous polarization. Meanwhile, some 2D networks of MOx foster geometric ferroelectricity with magnetism, owing to the distortion of the polyhedra. Because of the fundamentally different mechanism of ferroelectricity in a 2D network, one can further challenge an uncharted mechanism of ferroelectricity in a 1D channel of MOx and estimate its feasibility. Here, ferroelectricity and coupled ferromagnetism in a 1D FeO4 tetrahedral chain network of a brownmillerite SrFeO2.5 epitaxial thin film are presented. The result provides a new paradigm for designing low-dimensional MOx networks, which is expected to benefit the realization of macroscopic ferro-ordering materials including ferroelectric ferromagnets
Description:	Date Revised 01.10.2020 published: Print-Electronic Citation Status PubMed-not-MEDLINE
ISSN:	1521-4095
DOI:	10.1002/adma.201808104