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Experimental discovery of Sarma state in atomically thick superconducting FeSe films under high magnetic fields
Wantong Huang, Yuguo Yin, Haicheng Lin +12
Many-body ground states of imbalanced Fermi gas have been studied both theoretically and experimentally for several decades because of their fundamental significance in condensed m…
Landau-Level Quantization and Band Splitting of FeSe Monolayers Revealed by Scanning Tunneling Spectroscopy
Wantong Huang, Haicheng Lin, Yuguo Yin +9
Two-dimensional (2D) superconductors that reside on substrates must be influenced by Rashba spin-orbit coupling (SOC). The intriguing effect of Rashba-type SOCs on iron-based super…
Real-space BCS-BEC crossover in FeSe monolayer
Haicheng Lin, Wantong Huang, Gautam Rai +7
The quantum many body states in the BCS-BEC crossover regime are of long-lasting interest. Here we report direct spectroscopic evidence of BCS-BEC crossover in real-space in a FeSe…
Superconducting FeSe monolayer with milli-electron volt Fermi energy
Wantong Huang, Haicheng Lin, Cheng Zheng +3
Iron selenide (FeSe) is an iron-based superconductor which shows unique properties, including strongly anisotropic superconducting gap, paramagnetism in undoped compound and extrem…
Disorder induced multifractal superconductivity in monolayer niobium dichalcogenides
Kun Zhao, Haicheng Lin, Xiao Xiao +17
The interplay between disorder and superconductivity is a subtle and fascinating phenomenon in quantum many body physics. The conventional superconductors are insensitive to dilute…
Presence of -wave pairing in Josephson junctions made of twisted ultrathin BiSrCaCuO flakes
Yuying Zhu, Menghan Liao, Qinghua Zhang +14
Since the discovery of high temperature superconductivity in cuprates, Josephson junction based phase-sensitive experiments are believed and used to provide the most convincing evi…