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Chinese Physics B
Monodisperse Au-Fe 3 O 4 heterodimeric nanoparticles (NPs) were prepared by injecting precursors into a hot reaction solution. The size of Au and Fe 3 O 4 particles can be controlled by changing the injection temperature. UV-Vis spectra show that the surface plasma resonance band of Au-Fe 3 O 4 heterodimeric NPs was evidently red-shifted compared with the resonance band of Au NPs of similar size. The as-prepared heterodimeric Au-Fe 3 O 4 NPs exhibited superparamagnetic properties at roomdoi:10.1088/1674-1056/19/6/066102 fatcat:7bo2qj7xhfe53ljf7lf4zhyhre