1. Sensors and Electron Devices Directorate United States Army Research Laboratory 2800 Powder Mill Road Adelphi MD 20783 USA
2. General Technical Services, LLC 1451 Route 34 South—Suite 301 Wall Township NJ 07727 USA
3. National High Magnetic Field Laboratory Florida State University 1800 E. Paul Dirac Drive Tallahassee FL 32310 USA
4. Department of Electrical and Computer Engineering Duke University Durham NC 27708 USA