Recent progress in the theoretical design of two-dimensional ferroelectric materials

Area of Science:

• Materials Science
• Condensed Matter Physics
• Nanotechnology

Background:

• Two-dimensional (2D) ferroelectrics (FEs) are ultrathin materials with stable electric polarization, crucial for advanced miniature devices.
• Recent experimental fabrications have revealed unique properties of 2D FEs, especially when combined with other functional materials.
• The limited number of discovered 2D FEs necessitates further theoretical exploration and material design.

Purpose of the Study:

• To review recent theoretical predictions of novel 2D ferroelectric materials.
• To provide strategies for the rational design of 2D ferroelectric materials.
• To offer guidelines for developing new 2D ferroelectric functional devices.

Main Methods:

• Literature review of theoretical predictions for 2D ferroelectric materials.
• Analysis of structure-property relationships in 2D ferroelectrics.
• Discussion of design principles for 2D ferroelectric material discovery.

Main Results:

• Compilation of recently predicted 2D ferroelectric materials with unique characteristics.
• Identification of key strategies for designing new 2D ferroelectrics.
• Overview of potential applications in functional devices.

Conclusions:

• Theoretical predictions are vital for expanding the library of 2D ferroelectric materials.
• Rational design approaches can accelerate the discovery of next-generation 2D FEs.
• This review serves as a guide for future research in 2D ferroelectrics and device development.