  Here we report the synthesis and superconductivity of a novel ternary
compound LaPd2Bi2. Shiny plate-like single crystals of LaPd2Bi2 were first
synthesized by high-temperature solution method with PdBi flux. X-ray
diffraction analysis indicates that LaPd2Bi2 belongs to the primitive
tetragonal CaBe2Ge2-type structure with the space group P4/nmm (No. 129), and
the refined lattice parameters are a = 4.717(2) {\AA}, c = 9.957(3) {\AA}.
Electrical resistivity and magnetic susceptibility measurements reveal that
LaPd2Bi2 undergoes a superconducting transition at 2.83 K and exhibits the
characteristics of type-II superconductivity. The discovery of
superconductivity in LaPd2Bi2 with CaBe2Ge2-type structure may help to further
understand the possible relationship between the occurrence of
superconductivity and the crystal structures in 122-type materials.
