1. Micro‐/Nanotechnology Research Center State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong University Xi'an Shaanxi 710049 China
2. Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710049 China
3. The Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and Technology Xi'an Jiaotong University Xi'an Shaanxi 710049 China
4. Xi'an Institute of Electromechanical Information Technology Xi'an Shaanxi 710065 China
5. Department of Materials Science and Engineering Frederick Seitz Materials Research Laboratory and Beckman Institute University of Illinois at Urbana‐Champaign Urbana IL 61801 USA