Coexisting Magnetism, Ferroelectric, and Ferrovalley Multiferroic in Stacking-Dependent Two-Dimensional Materials
Huaiyin Institute of Technology · Xi'an Jiaotong University · +3 more institutions
Abstract
Two-dimensional (2D) multiferroic materials have widespread application prospects in facilitating the integration and miniaturization of nanodevices. However, the magnetic, ferroelectric, and ferrovalley properties in one 2D material are rarely coupled. Here, we propose a mechanism for manipulating magnetism, ferroelectric, and valley polarization by interlayer sliding in a 2D bilayer material. Monolayer GdI2 is a ferromagnetic semiconductor with a valley polarization of up to 155.5 meV. More interestingly, the magnetism and valley polarization of bilayer GdI2 can be strongly coupled by sliding ferroelectricity, making these tunable and reversible. In addition, we uncover the microscopic mechanism of the…
Citation impact
- FWCI
- 15.62
- Percentile
- 100%
- References
- 34
Authors
6Topics & keywords
- Magnetism
- Ferroelectricity
- Spintronics
- Multiferroics
- Condensed matter physics
- Materials science
- Ferromagnetism
- Polarization (electrochemistry)
- Sustainable cities and communities