V-I characteristics of 150 nm Nb superconductor film at 8 K, just below the critical temperature for superconductor transition. The black line presents data corresponding to clean Nb film, where the critical current (onset of voltage drop) is around 2 mA. The blue line was measured on the same Nb film after MPdS adsorption, showing that the critical current is suppressed. The red line presents the situation after 10 nm dia. gold NPs were deposited onto the MPdS, significantly enhancing the critical current to around 8 mA.
