4 papers · 1 filter
Polar nanoregions and reentrant-like ferroelectric behavior in SrTiO
Yuan-Jie Sun, Fei Yang, Long-Qing Chen
Recent real-space imaging in quantum paraelectric SrTiO [Nature 656, 54 (2026)] reveals that local polar textures do not continuously grow upon cooling, but reach a maximum int…
Soft-Phonon-Driven Effective Inversion-Symmetry Crossover in Quantum Paraelectrics
Xiaojiang Li, Guodong Zhao, Fei Yang +6
Symmetry lays the foundation of condensed matter physics and its experimental manifestation provides fundamental insight into the collective behaviors of quantum materials. Optical…
Hidden Crossover and Relaxor-Like Response from Emerging Polar Skyrmion Correlations in Ferroelectric Superlattices
Zhiyang Wang, Fei Yang, Long-Qing Chen
Polar skyrmions in ferroelectric superlattices are nanoscale topological polarization textures typically regarded as weakly coupled objects confined to individual layers, with a ro…
A Self-Consistent Computational Framework for Displacive Ferroelectrics from the Condensed Ground State
F. Yang, L. Q. Chen
Quantitative description of finite-temperature properties of displacive ferroelectrics, and in particular the critical behavior, is of fundamental importance to both theory and dev…