1. Institut
de Chimie de la Matière Condensée de Bordeaux, CNRS, Université de Bordeaux, 33608 Pessac, France
2. Department
of Mechanical and Materials Engineering, University of Nebraska−Lincoln, Lincoln, Nebraska 68588-0511, United States
3. Department
of Electrical Engineering, University of Nebraska−Lincoln, Lincoln, Nebraska 68588-0511, United States
4. Department TREFLE, Institut de Mécanique et Ingénierie, 33400 Talence, France