Intrinsic Two-Dimensional Ferroelectricity with Dipole Locking

J. Xiao, H. Zhu, Y. Wang, W. Feng, Y. Hu, A. Dasgupta, Y. Han, Y. Wang, D. A. Muller, L. W. Martin, P. Hu, and X. Zhang, "Intrinsic Two-Dimensional Ferroelectricity with Dipole Locking". Physical Review Letters 120, 227601 (2018). DOI:10.1103/PhysRevLett.120.227601