1. Department of Materials Science and Nanoengineering, Rice University, Houston, TX, 77005, USA
2. Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA
3. Department of Physics and Astronomy, University of Sussex, Brighton BN1 9RH, UK
4. Air Force Research Laboratory, Materials and Manufacturing Directorate, WPAFB, OH, 45431, USA
5. Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, TX, 77005, USA
6. Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
7. DEVCOM Army Research Laboratory, RF Devices and Circuits, Adelphi, Maryland 20783, USA
8. Naval Research Laboratory, Washington, DC 20375, USA