4 papers
Necklace-like pattern of vortex bound states
Zhiyong Hou, Kailun Chen, Wenshan Hong +8
Vortex is a topological defect in the superconducting condensate when a magnetic field is applied to a type-II superconductor, as elucidated by the Ginzburg-Landau theory. Due to t…
Magnetic-field driven evolution of zero-energy mode on Bi islands deposited on Fe(Te,Se)
Kailun Chen, Chuanhao Wen, Zhiyong Hou +2
We investigate the magnetic-field dependent evolution of the zero-bias conductance peaks (ZBCPs) on the nanoscale bismuth islands grown on the FeTeSe substrate. T…
Friedel Oscillations of Vortex Bound States Under Extreme Quantum Limit in KCa2Fe4As4F2
Xiaoyu Chen, Wen Duan, Xinwei Fan +6
We report the observation of discrete vortex bound states with the energy levels deviating from the widely believed ratio of 1:3:5 in the vortices of an iron based superconductor K…
Single particle tunneling spectroscopy and superconducting gaps in layered iron based superconductor KCaFeAsF
Wen Duan, Kailun Chen, Wenshan Hong +5
We perform scanning tunneling microscopy/spectroscopy study on the layered iron based superconductor KCaFeAsF with a critical temperature of about 33.5 K. Two types…