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Updated: Sep 18, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Polarization-controlled switching of magnetic anisotropy in CrSe2/Sc2CO2multiferroic heterostructures
Zhijian He1,2,3, Daifeng Zou1,2
1School of Physics and Electronic Science, Hunan University of Science and Technology, Xiangtan 411201, People's Republic of China.
Abstract:
Recent breakthroughs in two-dimensional (2D) magnetic materials have unveiled intriguing phenomena in low-dimensional ferromagnetic (FM) systems. However, their integration into spintronic devices faces challenges due to the predominant in-plane (IP) orientation of the easy magnetization axis. Achieving nonvolatile electrical control over magnetic anisotropy in such systems is essential for advancing next-generation spintronic technologies. In this work, we introduce a multiferroic van der Waals (vdW) heterostructure design that enables dynamic manipulation of magnetoelectric coupling in 2D ferromagnets. By investigating the CrSe2/Sc2CO2heterostructure-comprising a FM CrSe2monolayer coupled with a ferroelectric Sc2CO2layer-we demonstrate reversible switching of magnetic anisotropy via polarization engineering. Crucially, the system exhibits a controllable transition of the easy magnetization axis between IP and out-of-plane configurations, driven by ferroelectric polarization reversal. This magnetoelectric coupling mechanism unlocks novel functionalities for nonvolatile memory devices and adaptive logic components. Our findings provide a foundational strategy for voltage-free magnetic anisotropy tuning in vdWs heterostructures while elucidating interfacial magnetoelectric effects in low-dimensional systems.
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