DOI:https://doi.org/10.1103/PhysRevLett.111.029902
© 2013 American Physical Society
Jiarui Yang, Ze Liu, Francois Grey, Zhiping Xu, Xide Li, Yilun Liu, Michael Urbakh, Yao Cheng, and Quanshui Zheng
Vol. 111, Iss. 2 — 12 July 2013
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