1. Department of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia 22904, USA
2. Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904, USA
3. School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
4. Department of Electrical and Computer Engineering, University of New Mexico, Albuquerque, New Mexico 87131, USA
5. U.S. Naval Research Laboratory, Washington, DC 20375, USA
6. Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Eastern Province 31261, Saudi Arabia
7. Interdisciplinary Research Center for Advanced Materials, King Fahd University of Petroleum and Minerals, Dhahran, Eastern Province 31261, Saudi Arabia
8. Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA