title: Control of spin waves in a thin film ferromagnetic insulator through interfacial spin scattering.
abstract: Control of spin waves in a ferrite thin film via interfacial spin scattering was demonstrated. The experiments used a 4.6  μm-thick yttrium iron garnet (YIG) film strip with a 20-nm thick Pt capping layer. A dc current pulse was applied to the Pt layer and produced a spin current across the Pt thickness. As the spin current scatters off the YIG surface, it can either amplify or attenuate spin-wave pulses that travel in the YIG strip, depending on the current or field configuration. The spin scattering also affects the saturation behavior of high-power spin waves.
authors: Department of Physics, Colorado State University, Fort Collins, Colorado 80523, USA.
authors: Zihui
authors: Z
authors: Wang
authors: Yiyan
authors: Y
authors: Sun
authors: Mingzhong
authors: M
authors: Wu
authors: Vasil
authors: V
authors: Tiberkevich
authors: Andrei
authors: A
authors: Slavin