中国物理B ›› 2025, Vol. 34 ›› Issue (1): 17701-017701.doi: 10.1088/1674-1056/ad9456

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Manipulating optical and electronic properties through interfacial ferroelectricity

Yulu Liu(刘钰璐)1, Gan Liu(刘敢)1, and Xiaoxiang Xi(奚啸翔)1,2,3,†   

  1. 1 National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China;
    2 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China;
    3 Jiangsu Physical Science Research Center, Nanjing 210093, China
  • 收稿日期:2024-09-27 修回日期:2024-11-02 接受日期:2024-11-19 发布日期:2024-12-12
  • 通讯作者: Xiaoxiang Xi E-mail:xxi@nju.edu.edu
  • 基金资助:
    Project supported by the Natural Science Foundation of Jiangsu Province (Grant Nos. BK20231529 and BK20233001), the National Key Research and Development Program of China (Grant No. 2024YFA1409100), the Fundamental Research Funds for the Central Universities (Grant No. 0204-14380233), the National Natural Science Foundation of China (Grant Nos. 12474170 and 123B2059), and the National Postdoctoral Program for Innovative Talents (Grant No. BX20240160).

Manipulating optical and electronic properties through interfacial ferroelectricity

Yulu Liu(刘钰璐)1, Gan Liu(刘敢)1, and Xiaoxiang Xi(奚啸翔)1,2,3,†   

  1. 1 National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China;
    2 Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China;
    3 Jiangsu Physical Science Research Center, Nanjing 210093, China
  • Received:2024-09-27 Revised:2024-11-02 Accepted:2024-11-19 Published:2024-12-12
  • Contact: Xiaoxiang Xi E-mail:xxi@nju.edu.edu
  • Supported by:
    Project supported by the Natural Science Foundation of Jiangsu Province (Grant Nos. BK20231529 and BK20233001), the National Key Research and Development Program of China (Grant No. 2024YFA1409100), the Fundamental Research Funds for the Central Universities (Grant No. 0204-14380233), the National Natural Science Foundation of China (Grant Nos. 12474170 and 123B2059), and the National Postdoctoral Program for Innovative Talents (Grant No. BX20240160).

摘要: Interfacial ferroelectricity is a recently established mechanism for generating spontaneous reversible electric polarization, arising from the charge transfer between stacked van der Waals layered atomic crystals. It has been realized in both naturally formed multilayer crystals and moiré superlattices. Owing to the large number of material choices and combinations, this approach is highly versatile, greatly expanding the scope of ultrathin ferroelectrics. A key advantage of interfacial ferroelectricity is its potential to couple with preexisting properties of the constituent layers, enabling their electrical manipulation through ferroelectric switching and paving the way for advanced device functionalities. This review article summarizes recent experimental progress in interfacial ferroelectricity, with an emphasis on its coupling with a variety of electronic properties. After introducing the underlying mechanism of interfacial ferroelectricity and the range of material systems discovered to date, we highlight selected examples showcasing ferroelectric control of excitonic optical properties, Berry curvature effects, and superconductivity. We also discuss the challenges and opportunities that await further studies in this field.

关键词: interfacial ferroelectricity, sliding ferroelectricity, moiré ferroelectricity

Abstract: Interfacial ferroelectricity is a recently established mechanism for generating spontaneous reversible electric polarization, arising from the charge transfer between stacked van der Waals layered atomic crystals. It has been realized in both naturally formed multilayer crystals and moiré superlattices. Owing to the large number of material choices and combinations, this approach is highly versatile, greatly expanding the scope of ultrathin ferroelectrics. A key advantage of interfacial ferroelectricity is its potential to couple with preexisting properties of the constituent layers, enabling their electrical manipulation through ferroelectric switching and paving the way for advanced device functionalities. This review article summarizes recent experimental progress in interfacial ferroelectricity, with an emphasis on its coupling with a variety of electronic properties. After introducing the underlying mechanism of interfacial ferroelectricity and the range of material systems discovered to date, we highlight selected examples showcasing ferroelectric control of excitonic optical properties, Berry curvature effects, and superconductivity. We also discuss the challenges and opportunities that await further studies in this field.

Key words: interfacial ferroelectricity, sliding ferroelectricity, moiré ferroelectricity

中图分类号:  (Ferroelectricity and antiferroelectricity)

  • 77.80.-e
81.07.-b (Nanoscale materials and structures: fabrication and characterization)