1. Department of Materials Science and Engineering, The University of Texas at Dallas, 800 Campbell Road, Richardson, Texas 75080, Unites States
2. Centro de Investigación en Materiales Avanzados, S.C. (CIMAV), Unidad Monterrey, Alianza Norte 202, 66600 Apodaca, Nuevo León México
3. Texas Instruments Incorporated, 13121 TI Boulevard, MS-365, Dallas, Texas 75243, Unites States