Parametric Excitation of Spin Waves by Voltage-Controlled Magnetic Anisotropy

Abstract

The storage and transport of spin currents in spintronic devices are typically controlled by inputs of electrical current. This work instead proposes applying a voltage to excite a propagating spin wave in an ultrathin ferromagnetic heterostructure. This so-called ``voltage-controlled magnetic anisotropy'' technology could lead to significantly decreased power consumption and improved compatibility with conventional semiconductor devices.