1. Department of Physics
2. Laboratory of Nanoscale Condense Matter Physics and State Key Laboratory of Physical Chemistry of Solid Surfaces
3. Xiamen University
4. Xiamen, 361005 China
5. Nano-Device Laboratory
6. Department of Electrical Engineering and Materials Science and Engineering Program
7. University of California – Riverside
8. Riverside, 92521 USA
9. E. Pokatilov Laboratory of Physics and Engineering of Nanomaterials
10. Department of Physics and Engineering
11. Moldova State University
12. Chisinau, Republic of Moldova