  We report on the fabrication and electrical transport properties of
gate-tunable superconducting quantum interference devices (SQUIDs), made of
semiconducting PbS nanowire contacted with PbIn superconducting electrodes.
Applied with a magnetic field perpendicular to the plane of the nano-hybrid
SQUID, periodic oscillations of the critical current due to the flux
quantization in SQUID are observed up to T = 4.0 K. Nonsinusoidal current-phase
relationship is obtained as a function of temperature and gate voltage, which
is consistent with a short and diffusive junction model.
