1. Fundación IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco, E-28049 Madrid, Spain
2. Department of Physics, Lancaster University, Lancaster LA1 4YB, England
3. Department of Physics, College of Education for Pure Science, Tikrit University, Tikrit 34001, Iraq
4. Departamento de Química Orgánica, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
5. Departamento de Física de la Materia Condensada, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
6. Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain
7. Instituto ″Nicolás Cabrera″, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
8. Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid Spain
9. IRLoN, Research Institute of Macroheterocycles, Ivanovo State University of Chemistry and Technology, Ivanovo Oblast, 153000 Ivanovo, Russia