7 papers
Distinct Modulation Behavior of Superconducting Coherence Peaks Associated with Sign-Reversal Gaps in FeTeSe
Zhiyong Hou, Zhiyuan Shang, Wen Duan +3
Using high-resolution scanning tunneling microscopy, we reveal two distinct types of superconducting (SC) gap modulations in bulk superconductor FeTeSe. By analyz…
Superconducting gap structure and bosonic mode in La2PrNi2O7 thin films at ambient pressure
Shengtai Fan, Mengjun Ou, Marius Scholten +7
The recent discovery of high temperature superconductivity in nickelate systems has generated tremendous interests in the field of superconductivity. The core issue to understand t…
Density wave order with antiphase feature associated with the pseudogap in cuprate superconductor Bi2+xSr2-xCuO6+delta
Zhaohui Wang, Han Li, Shengtai Fan +3
The strong correlation effect in cuprate superconductors have greatly enriched the phase diagram showing the co-existence of superconductivity with many intertwined orders. One of…
Helical edge states and enhanced superconducting gaps in Bi islands on FeTeSe
Chuanhao Wen, Zhiyong Hou, Zhiyuan Shang +2
By measuring scanning tunneling spectroscopy on some large Bi islands deposited on FeTeSe superconductors, we observe clear evidence of topological in-gap edge st…
"Half-Bogoliubons" as the intermediate states for the phase coherence in underdoped cuprates
Han Li, Zhaohui Wang, Shengtai Fan +3
Superconductivity is achieved by the pairing of electrons and phase coherence between the Cooper pairs. According to the Bardeen-Cooper-Schrieffer theory, the quasiparticles with B…
Unprecedentedly large gap in HgBaCaCuO with the highest at ambient pressure
Chuanhao Wen, Zhiyong Hou, Alireza Akbari +6
In cuprate superconductors, the highest is possessed by the HgBaCaCuO (Hg-1223) system at ambient pressure, but the reason remains elusive. Here we repor…