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cond-mat.mtrl-sci2025
Ferroelectric Order and Enhanced Interfacial Superconductivity in Lightly-Doped Quantum Paraelectric KTaNbO
F. Yang, L. Q. Chen
Ferroelectric quantum criticality in perovskite oxides offers a fertile ground for emergent collective phenomena. Here we develop a first-principles-inspired quantum-statistics-bas…
cond-mat.mtrl-sci2025
Role of Ferrons in the Heat Capacity and Thermal Transport of Displacive Ferroelectrics
G. D. Zhao, F. Yang, L. Q. Chen
The collective amplitude mode of the order parameter in displacive ferroelectrics, termed the ferron, represents the amplitude fluctuations of long-range ordered polarization. At t…
cond-mat.mtrl-sci2025
Terahertz-induced second-harmonic generation in quantum paraelectrics: hot-phonon effect
F. Yang, X. J. Li, D. Talbayev +1
Recent terahertz-pump second-harmonic-generation(SHG)-probe measurements of quantum paraelectrics observed a significant long-lived non-oscillatory SHG component following an ultra…