1. University of North Texas,Department of Electrical Engineering,Denton,TX,USA,76207
2. Center for Nanoscale Matierals,Argonne National Laboratory,Lemont,IL,USA,60439
3. University of Arkansas, Pine Bluff,Pine Bluff,AR,USA,71601
4. University of North Texas,Department of Electrical Engineering, Department of Material Science and Engineering,Denton,TX,USA,76207