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Temperature dependence of the resistivity of the thin film without illumination (solid line) and with illumination (dashed line) taken on warming. The charge ordering temperature is indicated with the arrow. The inset shows experimental current and voltage configuration with respect to the illuminated region.
AFM image of gold nanoparticles on the surface of thin film.
Time dependence of the resistivity of the thin film at after laser illumination was switched on and off for sample with gold nanoparticles on the surface (squares) and without the nanoparticles (circles). Times at which the illumination was switched on and off are indicated by arrows. Solid lines are fits to the exponential time dependence .
Temperature dependence of the time constants for the process of transition from more conductive state to the charge-ordered state after illumination was switched off for sample with (circles) and without (triangles) gold nanoparticles on the surface.
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