1. Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA
2. Center for Integrated Nanotechnologies (CINT), Sandia National Laboratories, P.O. Box 5800, Albuquerque, New Mexico 87185, USA
3. National Research Council–AMRDEC, Charles M. Bowden Research Laboratory, Redstone Arsenal, Alabama 35898, USA
4. Center for Integrated Nanotechnologies (CINT-LANL), Los Alamos Laboratories, Los Alamos, New Mexico 87545, USA
5. Charles M. Bowden Research Laboratory, AMRDEC, U.S. Army RDECOM, Redstone Arsenal, Alabama 35898, USA