Alkali-deficiency driven charged out-of-phase boundaries for giant electromechanical response

Haijun Wu; Shoucong Ning; Moaz Waqar; Huajun Liu; Yang Zhang; Hong-Hui Wu; Ning Li; Yuan Wu; Kui Yao; Turab Lookman; Xiangdong Ding; Jun Sun; John Wang; Stephen J. Pennycook

doi:10.1038/s41467-021-23107-x

Nature Communications (May 2021)

Alkali-deficiency driven charged out-of-phase boundaries for giant electromechanical response

Haijun Wu,
Shoucong Ning,
Moaz Waqar,
Huajun Liu,
Yang Zhang,
Hong-Hui Wu,
Ning Li,
Yuan Wu,
Kui Yao,
Turab Lookman,
Xiangdong Ding,
Jun Sun,
John Wang,
Stephen J. Pennycook

Affiliations

Haijun Wu: State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University
Shoucong Ning: Department of Materials Science and Engineering, National University of Singapore
Moaz Waqar: Department of Materials Science and Engineering, National University of Singapore
Huajun Liu: Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research)
Yang Zhang: Instrumental Analysis Center of Xi’an Jiaotong University, Xi’an Jiaotong University
Hong-Hui Wu: Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing
Ning Li: Department of Materials Science and Engineering, National University of Singapore
Yuan Wu: Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing
Kui Yao: Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research)
Turab Lookman: 818 Bishops Lodge Road
Xiangdong Ding: State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University
Jun Sun: State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University
John Wang: Department of Materials Science and Engineering, National University of Singapore
Stephen J. Pennycook: Department of Materials Science and Engineering, National University of Singapore

DOI: https://doi.org/10.1038/s41467-021-23107-x
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 8

Abstract

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Phase boundary engineering through chemical alloying and phase control is a traditional approach to enhancing piezoelectric properties. Here, the authors design a strategy in alkali niobate films, utilizing alkali vacancies without alloying to form nanopillars enclosed.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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