  A low power magnetization switching scheme based on the voltage control of
magnetic anisotropy (VCMA) is proposed. In contrast to the conventional
switching scheme using VCMA, where the magnetic anisotropy is eliminated during
the voltage pulse, the magnetic anisotropy is enhanced to induce precession
around the axis close to the easy axis. After turning off the voltage
proximately at a half of precession period, the magnetization relaxes to the
opposite equilibrium direction. We perform numerical simulations and show that
the pulse duration of the proposed switching scheme is as short as a few tens
of pico seconds. Such a short pulse duration is beneficial for low power
consumption because of the reduction of energy loss by Joule heating.
