Dichotomy in ultrafast atomic dynamics as direct evidence of polaron formation in manganites

Junjie Li, Wei Guo Yin, Lijun Wu, Pengfei Zhu, Tatianna Konstantinova, Jing Tao, Junjie Yang, Sang Wook Cheong, Fabrizio Carbone, James A. Misewich, John P. Hill, Xijie Wang, Robert J. Cava, Yimei Zhu