3 papers
cond-mat.supr-con2025
Quantum fluctuations-driven Melting Transitions in Two-dimensional Superconductors
Dong Qiu, Yuting Zou, Chao Yang +16
Quantum fluctuations are pivotal in driving quantum phase transitions, exemplified by the quantum melting of Wigner crystals into Fermi liquids in electron systems. However, their…
cond-mat.supr-con2025
Superconductivity Favored Anisotropic Phase Stiffness in Infinite-Layer Nickelates
Minyi Xu, Dong Qiu, Minghui Xu +10
In unconventional superconductors such as cuprates and iron pnictides and chalcogenides, phase stiffness - a measure of the energy cost associated with superconducting phase variat…
cond-mat.supr-con2024
On the Amplitude of Vortex Entropy: A Semiclassical Treatment
Yehao Guo, Dong Qiu, Haiwen Liu +1
Despite a long history of Nernst effect in superconductors, a satisfactory theory on its amplitude in vortex liquid phase is still absent. The central quantity of vortex Nernst sig…