Indexed by:Journal paper First Author:X. Z. Chen Correspondence Author:C. Song Co-author: X. F. Zhou, R. Cheng, C. Song, J. Zhang, Y.C. Wu, Y. Ba, H.B. Li, Y. M. Sun, Y. F. You, Y.G. Zhao, F. Pan Journal:Nature Materials Included Journals:SCI Discipline:Science First-Level Discipline:Physics Document Type:J Volume:18 Page Number:931-935 Date of Publication:2019-09-01 Links to published journals:https://www.nature.com/articles/s41563-019-0424-2