1. a Materials Science Program
2. b Department of Electrical & Computer Engineering
3. f Seagate Technology , 7801 Computer Ave. S., Bloomington, MN, 55435, USA
4. c Department of Physics & Astronomy
5. d Department of Aerospace and Engineering Mechanics , The University of Alabama , Tuscaloosa, AL, 35487, USA
6. e Ingram School of Engineering , Texas State University , San Marcos, TX, 78666, USA