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Title: Polar octahedral rotations: A path to new multifunctional materials

Abstract

Perovskite ABO{sub 3} oxides display an amazing variety of phenomena that can be altered by subtle changes in the chemistry and internal structure, making them a favorite class of materials to explore the rational design of novel properties. Here we highlight a recent advance in which rotations of the BO{sub 6} octahedra give rise to a novel form of ferroelectricity - hybrid improper ferroelectricity. Octahedral rotations also strongly influence other structural, magnetic, orbital, and electronic degrees of freedom in perovskites and related materials. Octahedral rotation-driven ferroelectricity consequently has the potential to robustly control emergent phenomena with an applied electric field. The concept of 'functional' octahedral rotations is introduced and the challenges for materials chemistry and the possibilities for new rotation-driven phenomena in multifunctional materials are explored. - Graphical abstract: A{sub 3}B{sub 2}O{sub 7} and (A/A Prime )B{sub 2}O{sub 6} are two types of layered perovskites in which octahedral rotations induce ferroelectricity. Highlights: Black-Right-Pointing-Pointer Recent progress on achieving ferroelectricity from rotations of the BO{sub 6} octahedra in ABO{sub 3} perovskite oxides is reviewed. Black-Right-Pointing-Pointer The atomic scale layering of Pnma perovskites in two different ways leads to alternative structure realizations. Black-Right-Pointing-Pointer The concept of 'functional' octahedral rotations is introduced as amore » path to electric-field control of emergent phenomena.« less

Authors:
 [1];  [1];  [1]
  1. School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853 (United States)
Publication Date:
OSTI Identifier:
22149880
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 195; Other Information: Copyright (c) 2012 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CONTROL; DEGREES OF FREEDOM; ELECTRIC FIELDS; MATERIALS; ORTHORHOMBIC LATTICES; OXIDES; PEROVSKITE; ROTATION

Citation Formats

Benedek, Nicole A., E-mail: nab83@cornell.edu, Mulder, Andrew T., and Fennie, Craig J., E-mail: fennie@cornell.edu. Polar octahedral rotations: A path to new multifunctional materials. United States: N. p., 2012. Web. doi:10.1016/J.JSSC.2012.04.012.
Benedek, Nicole A., E-mail: nab83@cornell.edu, Mulder, Andrew T., & Fennie, Craig J., E-mail: fennie@cornell.edu. Polar octahedral rotations: A path to new multifunctional materials. United States. doi:10.1016/J.JSSC.2012.04.012.
Benedek, Nicole A., E-mail: nab83@cornell.edu, Mulder, Andrew T., and Fennie, Craig J., E-mail: fennie@cornell.edu. Thu . "Polar octahedral rotations: A path to new multifunctional materials". United States. doi:10.1016/J.JSSC.2012.04.012.
@article{osti_22149880,
title = {Polar octahedral rotations: A path to new multifunctional materials},
author = {Benedek, Nicole A., E-mail: nab83@cornell.edu and Mulder, Andrew T. and Fennie, Craig J., E-mail: fennie@cornell.edu},
abstractNote = {Perovskite ABO{sub 3} oxides display an amazing variety of phenomena that can be altered by subtle changes in the chemistry and internal structure, making them a favorite class of materials to explore the rational design of novel properties. Here we highlight a recent advance in which rotations of the BO{sub 6} octahedra give rise to a novel form of ferroelectricity - hybrid improper ferroelectricity. Octahedral rotations also strongly influence other structural, magnetic, orbital, and electronic degrees of freedom in perovskites and related materials. Octahedral rotation-driven ferroelectricity consequently has the potential to robustly control emergent phenomena with an applied electric field. The concept of 'functional' octahedral rotations is introduced and the challenges for materials chemistry and the possibilities for new rotation-driven phenomena in multifunctional materials are explored. - Graphical abstract: A{sub 3}B{sub 2}O{sub 7} and (A/A Prime )B{sub 2}O{sub 6} are two types of layered perovskites in which octahedral rotations induce ferroelectricity. Highlights: Black-Right-Pointing-Pointer Recent progress on achieving ferroelectricity from rotations of the BO{sub 6} octahedra in ABO{sub 3} perovskite oxides is reviewed. Black-Right-Pointing-Pointer The atomic scale layering of Pnma perovskites in two different ways leads to alternative structure realizations. Black-Right-Pointing-Pointer The concept of 'functional' octahedral rotations is introduced as a path to electric-field control of emergent phenomena.},
doi = {10.1016/J.JSSC.2012.04.012},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 195,
place = {United States},
year = {2012},
month = {11}
}