Zhang Yi, Lu Haidong, Xie Lin, Yan Xingxu, Paudel Tula R, Kim Jeongwoo, Cheng Xiaoxing, Wang Hui, Heikes Colin, Li Linze, Xu Mingjie, Schlom Darrell G, Chen Long-Qing, Wu Ruqian, Tsymbal Evgeny Y, Gruverman Alexei, Pan Xiaoqing
Department of Materials Science and Engineering, University of California, Irvine, CA, USA.
Department of Physics and Astronomy & Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA.
Nat Nanotechnol. 2018 Dec;13(12):1191. doi: 10.1038/s41565-018-0295-8.
In the version of this Letter originally published, the right-hand arrow in Fig. 3b was incorrectly labelled; see correction note for details. Also, ref. 29 was incorrectly included in the reference list; it has now been removed.