Here, pristine and Pd-intercalated 2H-TaS2 single crystals with (00l) orientation were grown by the chemical vapor transport technique. The superconductivity (SC) and charge density wave (CDW) were characterized by magnetic and electrical transport measurements. We find that SC and CDW in the pristine 2H-TaS2 condense respectively at transition temperatures Tc - 0.8 K and TCDW -78 K. The CDW order is completely suppressed, and Tc is greatly enhanced to 4.5 K in 2H-Pd0.04TaS2, which concludes a competing relation between the two collective electronic states. The positive Hall coefficient RH for...
