1. Institute of High Performance Computing, A*STAR, Singapore, Singapore 138632
2. School of Mechanical Engineering, Purdue University, West Lafayette, Indiana 47907, USA
3. School of Mechanical, Electronic, and Industrial Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
4. Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA
5. Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, USA