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07:03
Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
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2D Multiferroicity with Ferroelectric Switching Induced Spin-Constrained Photoelectricity
Yilv Guo1,2, Xing Yu1, Yehui Zhang1
1School of Physics, Southeast University, Nanjing 211189, China.
ACS Nano
|July 11, 2022
Summary
Researchers propose spin-constrained photoelectric memory in 2D magnetic/ferroelectric heterostructures. This enables low-power electrical writing and optical reading for integrated memory and logic applications.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Multiferroic materials integrate sensing, data storage, and processing.
- Research focuses on composite systems due to scarcity of single-phase multiferroics.
Purpose of the Study:
- Propose spin-constrained photoelectric memory in 2D layered magnetic/ferroelectric heterostructures.
- Explore low-power electrical write and nondestructive optical read operations.
- Investigate potential for integrated memory and logic applications.
Main Methods:
- First-principles calculations.
- Theoretical modeling of heterostructure properties.
- Analysis of magnetic and electronic states.
Main Results:
- Demonstrated spin-constrained photoelectric memory in NiI2/In2Se3 heterobilayer.
- Showcased reversible ferromagnetic and antiferromagnetic states controlled by ferroelectric polarization.
- Observed light-induced charge transfer leading to spin-polarized/unpolarized current for "1"/"0" states.
Conclusions:
- NiI2/In2Se3 heterobilayer is a promising candidate for spin-dependent photoelectric memory.
- Interfacial effects induce tunable magnetic anisotropy.
- Offers potential for integrated memory processing in 2D heterostructures.
Keywords:
First-principles calculationsmultiferroic interfacespin polarizationspin-photoelectric memorytwo-dimensional magnetic heterostructureMore Related Videos
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