  We report the growth, characterization and superconducting properties of a
new amorphous superconductor, RexZr ( x ~ 6 ), in thin film form. Films were
grown by pulsed laser deposition with the substrate kept at room temperature.
Films with thickness larger than 40 nm showed a superconducting transition
temperature (Tc) of 5.9 K. Superconducting properties were measured for films
with varying thickness from 120 to 3 nm. The normal state resistance scales
linearly with inverse of thickness. The transition temperature, critical field,
coherence length, penetration depth and superconducting energy gap changes
marginally with decreasing film thickness down to 8 nm. Scanning tunneling
spectroscopy and penetration depth measurements provide evidence for a single
gap strong coupling s-wave superconductor. Magneto-transport properties
indicate a rich magnetic field-temperature phase diagram with the possibility
of vortex liquid phases existing over a large fraction of the mixed state.
