Affiliation: | 1. University of Athens, Physics Department, Solid State Section, Panepistimiopolis, 157 84 Zografos, Athens, Greece;2. Groupe de Physique des Solides, CNRS Universite Paris VI et Paris VII-2, place Jussieu, 75251, Paris Cedex 05, France;1. Department of Physics, Cumhuriyet University, 58140 Sivas, Turkey;2. Grupo de Materia Condensade-UdeA, Instituto de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín, Colombia;3. Facultad de Ciencias, Universidad Autonóma del Estado de Morelos, Ave. Universidad 1001, CP 62209, Cuernavaca, Morelos, Mexico;4. Department of Physics, Dokuz Eylül University, 35160 Buca, İzmir, Turkey;1. Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica, Chile;2. Department of Solid State Physics, Yerevan State University, Alex Manoogian 1, 0025 Yerevan, Armenia;3. National University of Architecture and Construction of Armenia, Teryan 105, 0009 Yerevan, Armenia;4. Department of Physics, Politehnica University of Bucharest, 313 Splaiul Independentei, Bucharest RO-060042, Romania;1. Department of Physics, Baku State University, 23 Z. Khalilov st., AZ 1148, Baku, Azerbaijan;2. Institute of Physics, 131 H. Javid av., AZ 1143, Baku, Azerbaijan |