1UC Fe(Se,Te)
Inhomogeneity
A substrate-induced broken C4 symmetry(C4-C2)
short coherence length-SC gap size modulation
the SC pairing mechanism
the anisotopic strcuture of the long SC gap
the sign change of the SC gap on different electron pockets
the bonding-antibonding S-wave pairing symmetry drivered by spin flucturations in conjunction with SOC.