1. Center for Integrated Nanotechnologies Los Alamos National Laboratory Los Alamos NM 87545 USA
2. Department of Chemistry University of California Berkeley Berkeley CA 94720 USA
3. Nuclear Engineering Program Department of Mechanical and Aerospace Engineering The Ohio State University Columbus OH 43210 USA
4. Department of Chemistry Northwestern University Evanston IL 60208 USA
5. Center for Nanoscale Materials Argonne National Laboratory Lemont IL 60439 USA
6. Consortium for Advanced Science and Engineering University of Chicago Chicago IL 60637 USA
7. Theoretical Division Los Alamos National Laboratory Los Alamos NM 87545 USA