  Heavy fermions represent an archetypal example of strongly correlated
electron systems which, due to entanglement among different interactions, often
exhibit exotic and fascinating physics involving Kondo screening, magnetism and
unconventional superconductivity. Here we report a comprehensive study on the
transport and thermodynamic properties of a cerium-based heavy fermion compound
CeBi$_2$ which undergoes an anti-ferromagnetic transition at $T_N$ $\sim$ 3.3
K. Its high temperature paramagnetic state is characterized by an enhanced heat
capacity with Sommerfeld coefficient $\gamma$ over 200 mJ/molK$^2$. The
magnetization in the magnetically ordered state features a metamagnetic
transition. Remarkably, a large negative magnetoresistance associated with the
magnetism was observed in a wide temperature and field-angle range.
Collectively, CeBi$_2$ may serve as an intriguing system to study the interplay
between $f$ electrons and the itinerant Fermi sea.
