  Binary compounds of SnT family(T= As, Sb, Te, S, Se, P) exhibit novel
properties like superconductivity, topologically protected states etc. Some of
these compounds crystallize in NaCl type structure or in layered structure,
both of which are considered potentially important for
high-temperature/unconventional superconductivity. It was previously shown that
K-doped BaBiO$_3$ with NaCl type structure exhibits superconducting state below
$\sim$ 30 K. SnAs has crystallographic configuration that is exactly similar to
K-doped BaBiO$_3$ and this warrants for the investigation of superconductivity
in this material. Previously it was reported that SnAs exhibits weakly coupled
type I superconductivity with an energy gap of 0.7 meV. Recently, the
electronic bandstructure calculations has hinted to the existence of possible
topologically protected states in SnAs. This has motivated us to investigate
the superconducting nature of SnAs using point contact Andreev reflection
spectroscopy. Our investigation revealed that superconductivity in SnAs can be
well explained within the BCS framework in the weak coupling limit.
