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

Kyeong Tae Kang; Chang Jae Roh; Jinyoung Lim; Taewon Min; Jun Han Lee; Kyoungjun Lee; Tae Yoon Lee; Seunghun Kang; Daehee Seol; Jiwoong Kim; Hiromichi Ohta; Amit Khare; Sungkyun Park; Yunseok Kim; Seung Chul Chae; Yoon Seok Oh; Jaekwang Lee; Jaejun Yu; Jong Seok Lee; Woo Seok Choi

doi:10.1002/adma.201808104

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

Kyeong Tae Kang, Chang Jae Roh, Jinyoung Lim, Taewon Min, Jun Han Lee, Kyoungjun Lee, Tae Yoon Lee, Seunghun Kang, Daehee Seol, Jiwoong Kim, Hiromichi Ohta, Amit Khare, Sungkyun Park, Yunseok Kim, Seung Chul Chae, Yoon Seok Oh, Jaekwang Lee, Jaejun Yu, Jong Seok Lee, Woo Seok Choi

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

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 (MO_x) manifest spontaneous polarization. Meanwhile, some 2D networks of MO_x 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 MO_x and estimate its feasibility. Here, ferroelectricity and coupled ferromagnetism in a 1D FeO₄ tetrahedral chain network of a brownmillerite SrFeO_2.5 epitaxial thin film are presented. The result provides a new paradigm for designing low-dimensional MO_x networks, which is expected to benefit the realization of macroscopic ferro-ordering materials including ferroelectric ferromagnets.

Original language	English
Article number	1808104
Journal	Advanced Materials
Volume	31
Issue number	24
DOIs	https://doi.org/10.1002/adma.201808104
State	Published - 13 Jun 2019

Keywords

1D tetrahedral networks
SrFeO
ferroelectricity
magnetoelectric coupling
multiferroicity

Access to Document

10.1002/adma.201808104

Cite this

Kang, K. T., Roh, C. J., Lim, J., Min, T., Lee, J. H., Lee, K., Lee, T. Y., Kang, S., Seol, D., Kim, J., Ohta, H., Khare, A., Park, S., Kim, Y., Chae, S. C., Oh, Y. S., Lee, J., Yu, J., Lee, J. S., & Choi, W. S. (2019). A Room-Temperature Ferroelectric Ferromagnet in a 1D Tetrahedral Chain Network. Advanced Materials, 31(24), Article 1808104. https://doi.org/10.1002/adma.201808104

@article{124643a4249941ec8319d76807a0b283,

title = "A Room-Temperature Ferroelectric Ferromagnet in a 1D Tetrahedral Chain Network",

abstract = "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.",

keywords = "1D tetrahedral networks, SrFeO, ferroelectricity, magnetoelectric coupling, multiferroicity",

author = "Kang, {Kyeong Tae} and Roh, {Chang Jae} and Jinyoung Lim and Taewon Min and Lee, {Jun Han} and Kyoungjun Lee and Lee, {Tae Yoon} and Seunghun Kang and Daehee Seol and Jiwoong Kim and Hiromichi Ohta and Amit Khare and Sungkyun Park and Yunseok Kim and Chae, {Seung Chul} and Oh, {Yoon Seok} and Jaekwang Lee and Jaejun Yu and Lee, {Jong Seok} and Choi, {Woo Seok}",

note = "Publisher Copyright: {\textcopyright} 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2019",

month = jun,

day = "13",

doi = "10.1002/adma.201808104",

language = "English",

volume = "31",

journal = "Advanced Materials",

issn = "0935-9648",

publisher = "Wiley-Blackwell",

number = "24",

}

TY - JOUR

T1 - A Room-Temperature Ferroelectric Ferromagnet in a 1D Tetrahedral Chain Network

AU - Kang, Kyeong Tae

AU - Roh, Chang Jae

AU - Lim, Jinyoung

AU - Min, Taewon

AU - Lee, Jun Han

AU - Lee, Kyoungjun

AU - Lee, Tae Yoon

AU - Kang, Seunghun

AU - Seol, Daehee

AU - Kim, Jiwoong

AU - Ohta, Hiromichi

AU - Khare, Amit

AU - Park, Sungkyun

AU - Kim, Yunseok

AU - Chae, Seung Chul

AU - Oh, Yoon Seok

AU - Lee, Jaekwang

AU - Yu, Jaejun

AU - Lee, Jong Seok

AU - Choi, Woo Seok

PY - 2019/6/13

Y1 - 2019/6/13

N2 - 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.

AB - 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.

KW - 1D tetrahedral networks

KW - SrFeO

KW - ferroelectricity

KW - magnetoelectric coupling

KW - multiferroicity

UR - http://www.scopus.com/inward/record.url?scp=85065186096&partnerID=8YFLogxK

U2 - 10.1002/adma.201808104

DO - 10.1002/adma.201808104

M3 - Article

C2 - 31034128

AN - SCOPUS:85065186096

SN - 0935-9648

VL - 31

JO - Advanced Materials

JF - Advanced Materials

IS - 24

M1 - 1808104

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this