Synchronization of spin-torque oscillators in spin Hall geometry

摘要

An excitation of mutual synchronization between spin-torque oscillators is an exciting topic inthe field of spintronics. This is because it has a possibility enhancing emission power of practicaldevices based on spin-torque oscillators, such as microwave generator and magnetic sensors, andapplicability to new devices such as phased array and brain-inspired computing. Several mecha-nisms of synchronization have been proposed theoretically and/or demonstrated experimentally,such as spin wave propagation, electric current injection, microwave field, stochastic noise in cur-rent, and dipole interaction.