1. Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Dalian University of Technology)
2. Ministry of Education
3. School of Physics
4. Dalian 116024
5. China
6. Consiglio Nazionale delle Ricerche (CNR)-Istituto Officina dei Materiali (IOM)
7. Laboratorio TASC in Area Science Park
8. 34149 Trieste
9. Italy
10. Center for Condensed Matter Sciences
11. National Taiwan University
12. Taipei 10617
13. Taiwan
14. Department of Physical and Chemical Sciences
15. University of L’Aquila
16. 67100 L’Aquila
17. CNR-IMM Istituto per la Microelettronica e Microsistemi