1. Department of Materials Science and Engineering Case Western Reserve University Cleveland Ohio 44106‐7204
2. Department of Materials Imperial College London SW7 2AZ UK
3. Department of Physics Imperial College London SW7 2AZ UK
4. Department of Mechanical Engineering and Materials Science University of Pittsburgh Pittsburgh Pennsylvania 15261
5. Elements Strategy Initiative for Structural Materials Kyoto University Kyoto 606‐8501 Japan
6. Institute of Engineering Innovation University of Tokyo Tokyo 113‐8656 Japan