Experimental and theoretical investigations on the negative influence of an applied magnetic field on SERS of Ag nanoparticles

The influence of an applied MF on the SERS of Ag nanoparticles was investigated both experimentally and theoretically. The presence of a MF could lead to reducing electrons on the surface of Ag nanoparticles and a broadened energy gap, which could reduce surface plasma and charge transfer and then decrease the SERS intensity.