1. Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
2. Beijing National Center for Electron Microscopy, Tsinghua University, Beijing 100084, China
3. Department of Materials, ETH Zurich, 8093 Zurich, Switzerland
4. Centre for Brain-Inspired Computing Research, Tsinghua University, Beijing 100084, China