  Topological superconductivity is one of the frontier research directions in
condensed matter physics. One of the unique elementary excitations in
topological superconducting state is the Majorana fermion (mode) which is its
own antiparticle and obeys the non-Abelian statistics, and thus useful for
constructing the fault-tolerant quantum computing. The evidence for Majorana
fermions (mode) in condensed matter state is now quickly accumulated. Here we
report the easily achievable zero-energy mode on the tunneling spectra on Bi
islands deposited on the Fe(Te,Se) superconducting single crystals. We
interpret this result as the consequence of proximity effect induced
topological superconductivity on the Bi islands with strong spin-orbital
coupling effect. The zero-energy mode is argued to be the signature of the
Majorana modes in this size confined system.
