1. Nano‐Device Laboratory (NDL) and Phonon Optimized Engineered Materials (POEM) Center Department of Electrical and Computer Engineering University of California, Riverside Riverside CA 92521 USA
2. Department of Chemistry University of Georgia Athens GA 30602 USA
3. Institute of Radioelectronics and Multimedia Technology Warsaw University of Technology Warsaw 00‐665 Poland
4. Materials Science and Engineering Program University of California, Riverside Riverside CA 92521 USA
5. CENTERA Laboratories Institute of High‐Pressure Physics Polish Academy of Sciences Warsaw 01‐142 Poland
6. CEZAMAT Warsaw University of Technology Warsaw 02‐822 Poland