4 papers · 1 filter
Defect-Charge-Driven 90° Switching in HfO2
Muting Xie, Hongyu Yu, Zhihao Dai +3
Hafnium dioxide (HfO2) is a CMOS-compatible ferroelectric showing both 180° and 90° switching, yet the microscopic nature of the 90° pathway remains unresolved. We show that the…
Moiré-Induced Magnetoelectricity in Twisted Bilayer NiI2
Haiyan Zhu, Hongyu Yu, Weiqin Zhu +3
Twisted magnetic van der Waals (vdW) materials offer a promising route for multiferroic engineering, yet modeling large-scale moiré superlattices remains challenging. Leveraging a…
Deterministic and Efficient Switching of Sliding Ferroelectrics
Shihan Deng, Hongyu Yu, Junyi Ji +2
Recent studies highlight the scientific importance and broad application prospects of two-dimensional (2D) sliding ferroelectrics, which prevalently exhibit vertical polarization w…
Symmetry Strategy for Rapid Discovery of Abundant Fractional Quantum Ferroelectrics
Guoliang Yu, Junyi Ji, Changsong Xu +1
Traditional ferroelectrics are limited by Neumann's principle, which confines exploration of ferroelectrics within polar point groups. Our recent work [Nat. Commun. 15, 135, (2024)…