The origin of spin current in YIG/nonmagnetic metal multilayers at ferromagnetic resonance

Kang Yun¹, Zhong Hai¹, Hao Runrun¹, Hu Shujun¹, Kang Shishou^{1, †}, Liu Guolei¹, Zhang Yin², Wang Xiangrong^{2, ‡}, Yan Shishen¹, Wu Yong³, Yu Shuyun¹, Han Guangbing¹, Jiang Yong³, Mei Liangmo¹

(color online) The H-dependence of the DC-voltage (a) and FMR spectra (b) of YIG/Pt stripe line at θ = 0° and for various frequencies with antenna effect. (c) The frequency dependence of peak position of DC-voltages. The solid line is the fit to the Kittel formula.