journal article·2021-02-23Open access

Multiple structural components and their competition in the intermediate state of antiferroelectric Pb(Zr,Ti)O3

Zheyi An, Hiroko Yokota, Nan Zhang, Marek Paściak, Jan Fábry, Miloš Kopecký, Jiří Kub, Guanjie Zhang, A. M. Glazer, T. R. Welberry, Wei Ren, Zuo-Guang Ye

Physical Review B· Volume 103· Issue 5

Abstract

Antiferroelectric perovskites form an important family of functional electric materials, which have high potential in energy storage and conversion applications. However, a full understanding of their crystal structural formation is still lacking. ${\mathrm{PbZrO}}3$-based materials can serve as a model system for investigation, not only because ${\mathrm{PbZrO}}3$ was the first discovered antiferroelectric, but also because it undergoes a typical phase transition sequence from a high-temperature paraelectric to the low-temperature antiferroelectric phase, passing through a possible intermediate phase that is poorly understood. Here we employ a combination of optical and scattering experiments and theoretical calculations to reveal the nature of the intermediate state. Evidence is found that this peculiar state consists of multiple short-range and long-range structural components, and their competition is crucial in stabilizing the antiferroelectric phase. External stimuli such as temperature change or chemical substitution can easily alter each component's energy landscape and thereby change the materials' electrical properties. These findings provide insights into understanding antiferroelectric-ferroelectric competition and can be useful in designing alternative antiferroelectric materials.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Multiferroics and related materials · Microwave Dielectric Ceramics Synthesis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China

Department of Physics, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba City 263-8522, Japan and JST PRESTO, 7 Goban-cho, Chiyoda-Ku, Tokyo 102-0076, Japan

Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic

Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom and Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, United Kingdom

Research School of Chemistry, Australian National University, Canberra ACT 2601, Australia

Department of Chemistry and 4D LABS, Simon Fraser University, 8888 University Drive, Burnaby, British Columbia, Canada V5A 1S6

Funding

National Natural Science Foundation of China · Akademie Věd České Republiky · Ministry of Education, Culture, Sports, Science and Technology · Japan Science and Technology Agency · Office of Naval Research · Natural Sciences and Engineering Research Council of Canada

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