196 citations · 446 across the 9 of their papers we have counts for
5 papers · 1 filter
Doping-controlled transition from excitonic insulator to semimetal in TaNiSe
L. Chen, T. T. Han, C. Cai +4
Excitonic insulator (EI) is an intriguing insulating phase of matter, where electrons and holes are bonded into pairs, so called excitons, and form a phase-coherent state via Bose-…
Band insulator to Mott insulator transition in 1T-TaS
Y. D. Wang, W. L. Yao, Z. M. Xin +6
1T-TaS undergoes successive phase transitions upon cooling and eventually enters an insulating state of mysterious origin. Some consider this state to be a band insulator with…
Isostructural spin-density-wave and superconducting gap anisotropies in iron-arsenide superconductors
T. T. Han, L. Chen, C. Cai +4
When passing through a phase transition, electronic system saves energy by opening energy gaps at the Fermi level. Delineating the energy gap anisotropy provides insights into the…
Anomalous spectral weight transfer in the nematic state of iron-selenide superconductor
C. Cai, T. T. Han, Z. G. Wang +6
Nematic phase intertwines closely with high-Tc superconductivity in iron-based superconductors. Its mechanism, which is closely related to the pairing mechanism of superconductivit…
Momentum-resolved measurement of electronic nematic susceptibility in the FeSeS superconductor
C. Cai, T. T. Han, Z. G. Wang +6
Unveiling the driving force for a phase transition is normally difficult when multiple degrees of freedom are strongly coupled. One example is the nematic phase transition in iron-…