1. Materials Science Division, Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA 94720, USA.
2. Department of Materials Science and Engineering, University of California, Berkeley, CA 94720, USA.
3. Physical Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA 94551, USA.
4. Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.
5. Earth Science Division, LBNL, Berkeley, CA 94720, USA.
6. Department of Earth and Planetary Science, University of California, Berkeley, CA 94720, USA.
7. The Molecular Foundry, LBNL, Berkeley, CA 94720, USA.