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The single crystal growth and superconducting properties of PbTaSe2 withnon-centrosymmetric crystal structure is reported. Using the chemical vaportransport (CVT) technique, PbTaSe2 crystallizes in a layered structure and thecrystal symmetry has been shown belonging to a non-centrosymmetric space groupP6-m2 confirmed by the consistent band picture near the Fermi level between theangle-resolved photoemission spectrum (ARPES) and theoretical calculations.Superconductivity with Tc =3.83 K has been characterized fully with electricalresistivity \r{ho}(T), magnetic susceptibility \c{hi}(T), and specific heatC(T) measurements using single crystal samples. The superconducting anisotropy,electron-phonon coupling {\lambda}ep, superconducting energy gap {\Delta}0, andthe specific heat jump {\Delta}C/{\lambda}Tc at Tc confirms that PbTaSe2 can becategorized as a weakly coupled type-II superconductor.

Single crystal growth and physical property characterization of PbTaSe2 as a noncentrosymmetric type-II superconductor