1. Department of Chemistry, Physics, and Environment, University of Udine, Udine 33100, Italy e-mail:
2. Department of Electrical, Management, and Mechanical Engineering, University of Udine, Udine 33100, Italy e-mail:
3. Department of Engineering and Architecture, University of Trieste, Trieste 34128, Italy e-mail:
4. Department of Electrical, Management, and Mechanical Engineering, University of Udine;
5. Centro Internazionale di Scienze Meccaniche (CISM), Udine 33100, Italy e-mail: