5 papers
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…
A tractable framework for phase transitions in phase-fluctuating disordered 2D superconductors: applications to bilayer MoS and disordered InO thin films
F. Yang, L. Q. Chen
Starting from the purely microscopic model, we go beyond conventional mean-field theory and develop a self-consistent microscopic thermodynamic framework for disordered 2D supercon…
Preformed Cooper pairing and the uncondensed normal-state component in phase-fluctuating monolayer cuprate superconductivity
F. Yang, Y. Shi, L. Q. Chen
We develop a self-consistent microscopic framework beyond mean-field theory for monolayer cuprate superconductivity. It couples fermionic quasiparticles with collective phase dynam…
Revealing THz optical signatures of Shiba-state-induced gapped and gapless superconductivity
F. Yang, R. Y. Fang, S. L. Zhang +1
We report a fully self-consistent calculation of the complex renormalization by exchange interactions and hence the complete phase diagram of conventional -wave superconductors…
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…