Core Concepts
Controlling circular polarization of light through electrically controlled magnetization enables seamless integration of information transfer, processing, and storage.
Abstract
The content discusses the significance of modulating circular polarization of emitted light through electrically controlled magnetization. It highlights the transfer of angular momentum between photons, electrons, and ferromagnets to achieve this modulation. The use of spin-orbit torque to generate a spin current for magnetization switching is explained, emphasizing the control of spin orientation in semiconductors. The results showcase advancements in ultrafast modulation of circular polarization and spin injection for future information and communication technologies, including space-light data transfer and quantum information processing.
Stats
Controlling the intensity of emitted light and charge current is crucial for transferring and processing information.
Magnetic random-access memories are implemented using the spin of the carrier and associated magnetization in ferromagnets.
Circular polarization of emitted light can be modulated by electrically controlled magnetization.
Spin-orbit torque enables a charge current to generate a spin current for electrically switching magnetization.
Transfer of angular momentum from electron spin to photon controls circular polarization of emitted light.
Quotes
"The missing link between the respective disciplines of photonics, electronics, and spintronics is to modulate the circular polarization of the emitted light, rather than its intensity, by electrically controlled magnetization."
"Our results provide substantial advances towards electrically controlled ultrafast modulation of circular polarization and spin injection with magnetization dynamics for the next-generation information and communication technology."