Multiferroic coupling in bilayer Janus 3R-CrSCl
Abstract
Two-dimensional (2D) multiferroics with coupled ferroic orders are attractive for reconfigurable and low-power electronics. Here, we report that bilayer Janus CrSCl—modeled via first-principles calculations—exhibits coexisting intrinsic magnetism, sliding ferroelectricity, and ferrovalley polarization across three stacking configurations. In the S–S stacking, interlayer sliding reverses both electric polarization and valley polarization, while simultaneously switching the total magnetic moment. These reversible and strongly coupled order parameters enable electric- and magnetic-field control of four distinct multiferroic states. Our findings establish Janus CrSCl as a promising platform for field-tunable 2D multiferroics and multifunctional device architectures.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (8)
Miao Wang
Dingyi Yang
Wide Bandgap Semiconductor Technology Disciplines State Key Laboratory, Department of Advanced Materials and Nanotechnology, Academy of Advanced Interdisciplinary Research, Xidian University
Yong Wang
Jie Wang
State Key Laboratory of Molecular Oncology, Beijing Key Laboratory, CAMS Key Laboratory of Translational Research on Lung Cancer, Department of Medical Oncology Cancer Hospital, Chinese Academy of Medical Sciences Beijing China
Chi Ding
Department of Physics, Nanjing University
Yu Zhang
Xiangya Hospital, Central South University Changsha China
Xian Zhang
State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry
Yizhang Wu
Department of Applied Physical Sciences, University of North Carolina