Magnetic wafer and spintronic device imaging and demonstration system

The invention provides a magnetic wafer and spintronic device imaging and demonstration system. The magnetic wafer and spintronic device imaging and demonstration system comprises a magnetic wafer magneto-optical Kerr imaging module, a spintronic device magneto-optical Kerr imaging module and a computer, wherein the magnetic wafer magneto-optical Kerr imaging module comprises a light source I, a polarizer I, a lens element, a magnetic wafer, an analyzer I, a lens group II and a camera I; the camera I is connected with the computer; the spin electronic device magneto-optical Kerr imaging module comprises a light source II, a lens group III, a polarizer II, a beam splitter, an objective lens, a spin electronic device, a polarization analyzer II and a camera II; and the system further comprises a power supply module and a voltage measurement module. The imaging and demonstration system can simultaneously demonstrate a magnetization state in the magnetic wafer and the spinning electronic device, realizes large-vi