1. Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
2. Center for Advanced Materials Research (CMR), University of Texas at El Paso, El Paso, Texas 79968, United States
3. Department of Aerospace & Mechanical Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
4. Department of Physics, University of California Santa Barbara, Santa Barbara, California 93106, United States
5. Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan 48109, United States
6. Department of Physics, University of Texas at El Paso, El Paso, Texas 79968, United States