  We have grown single-crystal BiSbTe3 3D TI sample and studied structural, TE
as well as pressure dependent magneto-transport properties. Large positive
Seebeck coefficient confirmed the p-type nature of BiSbTe3, which is consistent
with Hall measurement. We have also studied the electronic band structure using
Laser-based ARPES, which revealed the existence of a Dirac-cone like metallic
surface state in BiSbTe3 with a Dirac Point situated exactly at the Fermi
level. Additionally, superconductivity emerges under pressure of 8 GPa with a
critical temperature of ~2.5 K. With further increase of pressure, the
superconducting transition temperature (Tc) increases and at 14 GPa it shows
the maximum Tc (~3.3 K).
