Regulating the circular polarization in nitride-based light-emitting diodes through the spin injection - Wu, Yaping; Chen, Jiajun; Zhou, Jiangpeng; Lan, Jinshen; Zeng, Hao; He, Bing; Zhong, Zhibai; Guo, Jian; Song, Anke; Xia, Yuanzheng; Li, Xu; Wu, Zhiming; et al. (Applied physics express, 2019)