Probing the Thermal Behavior and Stability of Metal-Fe₃O₄ Heterodimer Nanoparticles Utilizing In Situ Pulsed Laser Heating TEM

Figure 1

(a) Schematic diagram of the experimental set up of an in situ laser heating transmission electron microscope. (b) HAADF-STEM image of Pt HD system. (c, d) HR-STEM images of Pt and Fe₃O₄ nanoparticles at atomic resolution.