Designing pseudocubic perovskites with enhanced nanoscale polarization

Levin, I.; Laws, W. J.; Wang, D.; Reaney, I. M.

doi:10.1063/1.5007700

Title: Designing pseudocubic perovskites with enhanced nanoscale polarization

Abstract

A crystal-chemical framework has been proposed for the design of pseudocubic perovskites with nanoscale ferroelectric order, and its applicability has been demonstrated using a series of representative solid solutions that combined ferroelectric (K_0.5Bi_0.5TiO₃, BaTiO₃, and PbTiO₃) and antiferroelectric (Nd-substituted BiFeO₃) end members. The pseudocubic structures obtained in these systems exhibited distortions that were coherent on a scale ranging from sub-nanometer to tens of nanometers, but, in all cases, the macroscopic distortion remained unresolvable even if using high-resolution X-ray powder diffraction. Different coherence lengths for the local atomic displacements account for the distinctly different dielectric, ferroelectric, and electromechanical properties exhibited by the samples. The guidelines identified provide a rationale for chemically tuning the coherence length to obtain the desired functional response.

Authors:

Levin, I. ^[1]; Laws, W. J. ^[1]; Wang, D. ^[2]; Reaney, I. M. ^[2]

National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
Univ. of Sheffield (United Kingdom)

Publication Date:: Mon Nov 20 00:00:00 EST 2017

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1410689

Alternate Identifier(s):: OSTI ID: 1420606

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 111; Journal Issue: 21; Journal ID: ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: ENGLISH

Subject:: 36 MATERIALS SCIENCE; Superlattices; Crystal structure; Ceramics; Ferroelectricity; Powder diffraction; Chemical elements; Perovskites; Ferroelectric materials; Antiferroelectricity; Dielectric properties

Citation Formats


                    Levin, I., Laws, W. J., Wang, D., and Reaney, I. M. Designing pseudocubic perovskites with enhanced nanoscale polarization.  United States: N. p., 2017. 
Web.  doi:10.1063/1.5007700.

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                    Levin, I., Laws, W. J., Wang, D., & Reaney, I. M. Designing pseudocubic perovskites with enhanced nanoscale polarization.  United States.  https://doi.org/10.1063/1.5007700

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                    Levin, I., Laws, W. J., Wang, D., and Reaney, I. M. Mon .  
"Designing pseudocubic perovskites with enhanced nanoscale polarization".  United States.  https://doi.org/10.1063/1.5007700.  https://www.osti.gov/servlets/purl/1410689.

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@article{osti_1410689,

  title        = {Designing pseudocubic perovskites with enhanced nanoscale polarization},

  author       = {Levin, I. and Laws, W. J. and Wang, D. and Reaney, I. M.},

  abstractNote = {A crystal-chemical framework has been proposed for the design of pseudocubic perovskites with nanoscale ferroelectric order, and its applicability has been demonstrated using a series of representative solid solutions that combined ferroelectric (K0.5Bi0.5TiO3, BaTiO3, and PbTiO3) and antiferroelectric (Nd-substituted BiFeO3) end members. The pseudocubic structures obtained in these systems exhibited distortions that were coherent on a scale ranging from sub-nanometer to tens of nanometers, but, in all cases, the macroscopic distortion remained unresolvable even if using high-resolution X-ray powder diffraction. Different coherence lengths for the local atomic displacements account for the distinctly different dielectric, ferroelectric, and electromechanical properties exhibited by the samples. The guidelines identified provide a rationale for chemically tuning the coherence length to obtain the desired functional response.},

  doi          = {10.1063/1.5007700},

  journal      = {Applied Physics Letters},

  number       = 21,

  volume       = 111,

  place        = {United States},

  year         = {Mon Nov 20 00:00:00 EST 2017},

  month        = {Mon Nov 20 00:00:00 EST 2017}

}

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Works referencing / citing this record:

An intermediate metastable ferroelectric state induced giant functional responses in Bi _0.5 Na _0.5 TiO ₃ ceramics
journal, January 2019

Zhou, Changrong; Zhang, Yongsheng; Wang, Yufan
Journal of Materials Chemistry C, Vol. 7, Issue 27
DOI: 10.1039/c9tc00780f

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Title: Designing pseudocubic perovskites with enhanced nanoscale polarization

Abstract

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