Investigation of the effect of spatial dispersion in a metal shell of a non-spherical magnetoplasmonic nanoparticle

Based on the method of discrete sources, effect spatial dispersion in metal shell a magnetoplasmonic nanoparticle absorption electromagnetic energy is studied. Hybrid particle composed magnetic core Fe 3 O 4 or 2 and golden shell. The influence elongation spheroidal particles level considered. It shown that taking into account leads to decrease cross section 30% accompanied by shift plasmon resonance short-wavelength region down 25 nm. found averaging over directions propagation external excitation polarizations entails threefold absorbed energy. Keywords: source method, resonance, dispersion, generalized nonlocal response theory.