1. Department of Electrical and Computer Engineering, Clemson University, Clemson, South Carolina 29634‐5910
2. Center for Silicon Nanoelectronics and Material Science and Engineering Program, Clemson University, Clemson, South Carolina 29634‐5910
3. Equimeter Incorporated, DuBois, Pennsylvania 15801
4. Department of Ceramic Engineering, Clemson University, Clemson, South Carolina 29634‐5910