Two-dimensional Ferroelectricity 6 Topology 6 Convolutional neural networks 5 Electronic structure 5 Aspect ratio 4 Calculations 4 Convolution 4 Density functional theory 4 Ferromagnetic materials 4 Ferromagnetism 4 First principle calculations 4 Monolayers 4 Numerical methods 4 Polarization 4 Quantum theory 4 Binary alloys 3 Deep neural networks 3 Ferroelectric materials 3 Ferroelectrics materials 3 Fundamental frequencies 3 Ground state 3 Intelligent systems 3 Layered semiconductors 3 Molybdenum compounds 3 Monte Carlo methods 3 Network-based 3 Out-of-plane 3 Solitons 3 Absorbing boundary condition 2