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Formation of Head/Tail-to-Body Charged Domain Walls by Mechanical Stress.
Huang, Qianwei; Yang, Jiyuan; Chen, Zibin; Chen, Yujie; Cabral, Matthew J; Luo, Haosu; Li, Fei; Zhang, Shujun; Li, Yulan; Xie, Zonghan; Huang, Houbing; Mai, Yiu-Wing; Ringer, Simon P; Liu, Shi; Liao, Xiaozhou.
Afiliación
  • Huang Q; School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales2006, Australia.
  • Yang J; Key Laboratory for Quantum Materials of Zhejiang Province, Department of Physics, School of Science, Westlake University, Hangzhou, Zhejiang310030, China.
  • Chen Z; Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou, Zhejiang310024, China.
  • Chen Y; Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, China.
  • Cabral MJ; School of Mechanical Engineering, The University of Adelaide, Adelaide, South Australia5005, Australia.
  • Luo H; School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales2006, Australia.
  • Li F; Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai200050, China.
  • Zhang S; Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an710049, China.
  • Li Y; Institute for Superconducting and Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Wollongong, New South Wales2522, Australia.
  • Xie Z; Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington99352, United States.
  • Huang H; School of Mechanical Engineering, The University of Adelaide, Adelaide, South Australia5005, Australia.
  • Mai YW; School of Materials Science and Engineering, Beijing Institute of Technology, Beijing100081, China.
  • Ringer SP; School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales2006, Australia.
  • Liu S; School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales2006, Australia.
  • Liao X; Key Laboratory for Quantum Materials of Zhejiang Province, Department of Physics, School of Science, Westlake University, Hangzhou, Zhejiang310030, China.
ACS Appl Mater Interfaces ; 15(1): 2313-2318, 2023 Jan 11.
Article en En | MEDLINE | ID: mdl-36534513
Domain walls (DWs) in ferroelectric materials are interfaces that separate domains with different polarizations. Charged domain walls (CDWs) and neutral domain walls are commonly classified depending on the charge state at the DWs. CDWs are particularly attractive as they are configurable elements, which can enhance field susceptibility and enable functionalities such as conductance control. However, it is difficult to achieve CDWs in practice. Here, we demonstrate that applying mechanical stress is a robust and reproducible approach to generate CDWs. By mechanical compression, CDWs with a head/tail-to-body configuration were introduced in ultrathin BaTiO3, which was revealed by in-situ transmission electron microscopy. Finite element analysis shows strong strain fluctuation in ultrathin BaTiO3 under compressive mechanical stress. Molecular dynamics simulations suggest that the strain fluctuation is a critical factor in forming CDWs. This study provides insight into ferroelectric DWs and opens a pathway to creating CDWs in ferroelectric materials.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2023 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Estados Unidos
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: ACS Appl Mater Interfaces Asunto de la revista: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Año: 2023 Tipo del documento: Article País de afiliación: Australia Pais de publicación: Estados Unidos