journal article·2022-11-16

Phase Competition in High-Quality Epitaxial Antiferroelectric PbZrO3 Thin Films

Yangyang Si, Tianfu Zhang, Zuhuang Chen, Qinghua Zhang, Shuai Xu, Ting Lin, Haoliang Huang, Chao Zhou, Shanquan Chen, Suzhen Liu, Yongqi Dong, Chenhan Liu, Yunlong Tang, Yalin Lu, Kuijuan Jin, Er-Jia Guo, Xi Lin

ACS Applied Materials & Interfaces· Volume 14· Issue 45
Publisher page

Abstract

Antiferroelectric PbZrO3 has attracted renewed interest in recent years because of its unique properties and wide range of potential applications. However, the nature of antiferroelectricity and its evolution with the electric field and temperature remain controversial, mostly due to the difficulty of obtaining high-quality single-crystal samples. The lack of consensus regarding the phase transition in PbZrO3 is not only important on a fundamental side but also greatly hinders further applications. Herein, high-quality PbZrO3 epitaxial thin films are successfully fabricated by pulsed laser deposition. The structural and physical properties of the films are systematically studied via a combination of electric property measurements, X-ray diffraction, scanning transmission electron microscopy imaging, and second-harmonic generation studies. Our studies unveil the noncentrosymmetric nature of PbZrO3 films at room temperature. Moreover, the Curie temperature increased to 270°, ∼40° higher than that in the bulk, and no intermediate ferroelectric phase was observed. Besides, an incipient ferroelectric with relaxor-like behavior above the Curie temperature due to the existence of a local polar cluster in the high-temperature paraelectric phase is experimentally observed for the first time. Our studies provide a better understanding of PbZrO3 thin films and pave the way for practical applications of antiferroelectric material in modern electronic devices.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Ferroelectric and Negative Capacitance Devices

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

Affiliations

School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, Guangdong 518055, China

Flexible Printed Electronics Technology Center, Harbin Institute of Technology, Shenzhen, Guangdong 518055, China

Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Anhui Laboratory of Advanced Photon Science and Technology, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China

Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China

School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, Liaoning 110016, China

National Synchrotron Radiation Laboratory and CAS Key Laboratory of Materials for Energy Conversion, Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026 China

Micro- and Nano-Scale Thermal Measurement and Thermal Management Laboratory, School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing, Jiangsu 210046, P. R. China

Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen, Guangdong 518055, P.R. China

State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin, Heilongjiang 150001, P. R. China

Funding

Guangdong Science and Technology Department · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangsu Province · Youth Innovation Promotion Association of the Chinese Academy of Sciences · Science, Technology and Innovation Commission of Shenzhen Municipality · National Natural Science Foundation of China · Chinese Academy of Sciences · Basic Science Research Project of Higher Education Institutions of Jiangsu Province · Science and Technology on Reactor Fuel and Materials Laboratory

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