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Bogoliubov Quasiparticle on the Gossamer Fermi Surface in Electron-Doped Cuprates
Ke-Jun Xu, Qinda Guo, Makoto Hashimoto +14
In contrast to hole-doped cuprates, electron-doped cuprates consistently exhibit strong antiferromagnetic correlations with a commensurate (π, π) ordering wave vector, leading to t…
A unique van Hove singularity in kagome superconductor CsVTaSb with enhanced superconductivity
Yang Luo, Yulei Han, Jinjin Liu +23
Van Hove singularity (VHS) has been considered as a driving source for unconventional superconductivity. A VHS in two-dimensional (2D) materials consists of a saddle point connecti…
Differentiated roles of Lifshitz transition on thermodynamics and superconductivity in La2-xSrxCuO4
Yong Zhong, Zhuoyu Chen, Su-Di Chen +7
The effect of Lifshitz transition on thermodynamics and superconductivity in hole-doped cuprates has been heavily debated but remains an open question. In particular, an observed p…
Nematic fluctuations in the non-superconducting iron pnictide BaFeNiCrAs
Dongliang Gong, Ming Yi, Meng Wang +16
The main driven force of the electronic nematic phase in iron-based superconductors is still under debate. Here, we report a comprehensive study on the nematic fluctuations in a no…
Electronic structure of superconducting nickelates probed by resonant photoemission spectroscopy
Zhuoyu Chen, Motoki Osada, Danfeng Li +14
The discovery of infinite-layer nickelate superconductors has spurred enormous interest. While the Ni cations possess nominally the same 3 configuration as Cu in…
Magic Doping and Robust Superconductivity in Monolayer FeSe on Titanates
Tao Jia, Zhuoyu Chen, Slavko N. Rebec +6
The enhanced superconductivity in monolayer FeSe on titanates opens a fascinating pathway towards the rational design of high-temperature superconductors. Utilizing the state-of-th…