journal article·2019-01-16

Self-Assembled Ferroelectric Nanoarray

Jie Jiang, Qiong Yang, Yi Zhang, Xiao-Yu Li, Pao-Wen Shao, Ying-Hui Hsieh, Heng-Jui Liu, Qiang-Xiang Peng, Gao-Kuo Zhong, Xiao-Qing Pan, Ying-Hao Chu, Yi-Chun Zhou

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Abstract

Self-assembled heteroepitaxial nanostructures have played an important role for miniaturization of electronic devices, e.g., the ultrahigh density ferroelectric memories, and cause for great concern. Our first principle calculations predict that the materials with low formation energy of the interface (Ef) tend to form matrix structure in self-assembled heteroepitaxial nanostructures, whereas those with high Ef form nanopillars. Under the guidance of the theoretical modeling, perovskite BiFeO3 (BFO) nanopillars are swimmingly grown into CeO2 matrix on single-crystal (001)-SrTiO3 (STO) substrates by pulsed laser deposition, where CeO2 has a lower formation energy of the interface (Ef) than BFO. This work provides a good paradigm for controlling self-assembled nanostructures as well as the application of self-assembled ferroelectric nanoscale memory.
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Research context

OpenAlex topics: Ferroelectric and Piezoelectric Materials · Multiferroics and related materials · Advanced Sensor and Energy Harvesting Materials

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

Affiliations

Key Laboratory of Low Dimensional Materials and Application Technology, Ministry of Education, Xiangtan University, 411105 Xiangtan, China

Department of Chemical Engineering and Materials Science, University of California-Irvine, Irvine, California 92697, United States

Department of Materials Science and Engineering, National Chiao Tung University, 30010 Hsinchu, Taiwan, China

Department of Materials Science and Engineering, National Chung Hsing University, 40227 Taichung, Taiwan, China

Material and Chemical Research Laboratories, Industrial Technology Research Institute, 31040 Hsinchu, Taiwan, China

Funding

National Natural Science Foundation of China · Hunan Province · State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology Shannxi

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