1. Department of Materials Science
and Engineering, Drexel University, Philadelphia,
Pennsylvania, United States
2. Department of Electrical and
Computer Engineering, Lehigh University, Bethlehem, Pennsylvania, United States
3. Istituto per la Microelettronica
e Microsistemi (IMM), Consiglio Nazionale delle Ricerche (CNR), Lecce, Italy
4. Department of Innovation Engineering, University of Salento, Lecce, Italy
5. Braun Center for Submicron Research,
Condensed Matter Physics Dept., Weizmann Institute of Science, Rehovot 76100, Israel
6. Department of Electrical and Computer
Engineering, University of Alabama, Tuscaloosa,
Alabama, United States
7. Department
of Physics, Nuclear Research
Center, Negev, P.O. Box 9001, Beer-Sheva
84190, Israel