Provided are a method of generating strong spin
waves, a method of simultaneously generating spin
waves and electromagnetic
waves, a logic operation device using spin waves, a variety of
spin wave devices employing the same, and a method of controlling phases of spin waves. In the method of generating spin waves, strong spin waves are generated by supplying various shapes of energies to a magnetic material in which a
magnetic vortex and magnetic antivortex spin structures exist separately or together. When energies are applied to a patterned magnetic material so that
magnetic vortex or magnetic antivortex can be generated, a strong torque is generated in a vortex core so that strong spin waves can be generated from the vortex core. The spin waves generated in this way have large amplitudes, short wavelengths, and high frequencies. In the logic operation device using spin waves and the
spin wave devices employing the same, wave factors of frequency,
wavelength, amplitude, and phase of a
spin wave generated by the method of generating spin waves are controlled and wave characteristics such as reflection,
refraction, transmission, tunneling, superposition, interference, and
diffraction are used. According to the present invention, logic operation spin wave devices capable of performing ultra-high speed
information processing and various shapes of optical devices using waves in
optics can be reconstructed using spin waves.